\(\int x^2 \sin ^2(a+b x-c x^2) \, dx\) [20]

Optimal result

Integrand size = 18, antiderivative size = 248 \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\frac {x^3}{6}+\frac {b^2 \sqrt {\pi } \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{5/2}}-\frac {\sqrt {\pi } \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{3/2}}+\frac {\sqrt {\pi } \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \sin \left (2 a+\frac {b^2}{2 c}\right )}{16 c^{3/2}}+\frac {b^2 \sqrt {\pi } \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \sin \left (2 a+\frac {b^2}{2 c}\right )}{16 c^{5/2}}+\frac {b \sin \left (2 a+2 b x-2 c x^2\right )}{16 c^2}+\frac {x \sin \left (2 a+2 b x-2 c x^2\right )}{8 c} \]

[Out]

1/6*x^3+1/16*b*sin(-2*c*x^2+2*b*x+2*a)/c^2+1/8*x*sin(-2*c*x^2+2*b*x+2*a)/c+1/16*b^2*cos(2*a+1/2*b^2/c)*Fresnel
C((-2*c*x+b)/c^(1/2)/Pi^(1/2))*Pi^(1/2)/c^(5/2)-1/16*cos(2*a+1/2*b^2/c)*FresnelS((-2*c*x+b)/c^(1/2)/Pi^(1/2))*
Pi^(1/2)/c^(3/2)+1/16*FresnelC((-2*c*x+b)/c^(1/2)/Pi^(1/2))*sin(2*a+1/2*b^2/c)*Pi^(1/2)/c^(3/2)+1/16*b^2*Fresn
elS((-2*c*x+b)/c^(1/2)/Pi^(1/2))*sin(2*a+1/2*b^2/c)*Pi^(1/2)/c^(5/2)

Rubi [A] (verified)

Time = 0.16 (sec) , antiderivative size = 248, normalized size of antiderivative = 1.00, number of steps used = 10, number of rules used = 7, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.389, Rules used = {3548, 3545, 3543, 3529, 3433, 3432, 3528} \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\frac {\sqrt {\pi } \sin \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{3/2}}+\frac {\sqrt {\pi } b^2 \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{5/2}}+\frac {\sqrt {\pi } b^2 \sin \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{5/2}}-\frac {\sqrt {\pi } \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{3/2}}+\frac {b \sin \left (2 a+2 b x-2 c x^2\right )}{16 c^2}+\frac {x \sin \left (2 a+2 b x-2 c x^2\right )}{8 c}+\frac {x^3}{6} \]

[In]

Int[x^2*Sin[a + b*x - c*x^2]^2,x]

[Out]

x^3/6 + (b^2*Sqrt[Pi]*Cos[2*a + b^2/(2*c)]*FresnelC[(b - 2*c*x)/(Sqrt[c]*Sqrt[Pi])])/(16*c^(5/2)) - (Sqrt[Pi]*
Cos[2*a + b^2/(2*c)]*FresnelS[(b - 2*c*x)/(Sqrt[c]*Sqrt[Pi])])/(16*c^(3/2)) + (Sqrt[Pi]*FresnelC[(b - 2*c*x)/(
Sqrt[c]*Sqrt[Pi])]*Sin[2*a + b^2/(2*c)])/(16*c^(3/2)) + (b^2*Sqrt[Pi]*FresnelS[(b - 2*c*x)/(Sqrt[c]*Sqrt[Pi])]
*Sin[2*a + b^2/(2*c)])/(16*c^(5/2)) + (b*Sin[2*a + 2*b*x - 2*c*x^2])/(16*c^2) + (x*Sin[2*a + 2*b*x - 2*c*x^2])
/(8*c)

Rule 3432

Int[Sin[(d_.)*((e_.) + (f_.)*(x_))^2], x_Symbol] :> Simp[(Sqrt[Pi/2]/(f*Rt[d, 2]))*FresnelS[Sqrt[2/Pi]*Rt[d, 2
]*(e + f*x)], x] /; FreeQ[{d, e, f}, x]

Rule 3433

Int[Cos[(d_.)*((e_.) + (f_.)*(x_))^2], x_Symbol] :> Simp[(Sqrt[Pi/2]/(f*Rt[d, 2]))*FresnelC[Sqrt[2/Pi]*Rt[d, 2
]*(e + f*x)], x] /; FreeQ[{d, e, f}, x]

Rule 3528

Int[Sin[(a_.) + (b_.)*(x_) + (c_.)*(x_)^2], x_Symbol] :> Dist[Cos[(b^2 - 4*a*c)/(4*c)], Int[Sin[(b + 2*c*x)^2/
(4*c)], x], x] - Dist[Sin[(b^2 - 4*a*c)/(4*c)], Int[Cos[(b + 2*c*x)^2/(4*c)], x], x] /; FreeQ[{a, b, c}, x] &&
NeQ[b^2 - 4*a*c, 0]

Rule 3529

Int[Cos[(a_.) + (b_.)*(x_) + (c_.)*(x_)^2], x_Symbol] :> Dist[Cos[(b^2 - 4*a*c)/(4*c)], Int[Cos[(b + 2*c*x)^2/
(4*c)], x], x] + Dist[Sin[(b^2 - 4*a*c)/(4*c)], Int[Sin[(b + 2*c*x)^2/(4*c)], x], x] /; FreeQ[{a, b, c}, x] &&
NeQ[b^2 - 4*a*c, 0]

Rule 3543

Int[Cos[(a_.) + (b_.)*(x_) + (c_.)*(x_)^2]*((d_.) + (e_.)*(x_)), x_Symbol] :> Simp[e*(Sin[a + b*x + c*x^2]/(2*
c)), x] + Dist[(2*c*d - b*e)/(2*c), Int[Cos[a + b*x + c*x^2], x], x] /; FreeQ[{a, b, c, d, e}, x] && NeQ[2*c*d
- b*e, 0]

Rule 3545

Int[Cos[(a_.) + (b_.)*(x_) + (c_.)*(x_)^2]*((d_.) + (e_.)*(x_))^(m_), x_Symbol] :> Simp[e*(d + e*x)^(m - 1)*(S
in[a + b*x + c*x^2]/(2*c)), x] + (-Dist[(b*e - 2*c*d)/(2*c), Int[(d + e*x)^(m - 1)*Cos[a + b*x + c*x^2], x], x
] - Dist[e^2*((m - 1)/(2*c)), Int[(d + e*x)^(m - 2)*Sin[a + b*x + c*x^2], x], x]) /; FreeQ[{a, b, c, d, e}, x]
&& NeQ[b*e - 2*c*d, 0] && GtQ[m, 1]

Rule 3548

Int[((d_.) + (e_.)*(x_))^(m_.)*Sin[(a_.) + (b_.)*(x_) + (c_.)*(x_)^2]^(n_), x_Symbol] :> Int[ExpandTrigReduce[
(d + e*x)^m, Sin[a + b*x + c*x^2]^n, x], x] /; FreeQ[{a, b, c, d, e, m}, x] && IGtQ[n, 1]

Rubi steps \begin{align*} \text {integral}& = \int \left (\frac {x^2}{2}-\frac {1}{2} x^2 \cos \left (2 a+2 b x-2 c x^2\right )\right ) \, dx \\ & = \frac {x^3}{6}-\frac {1}{2} \int x^2 \cos \left (2 a+2 b x-2 c x^2\right ) \, dx \\ & = \frac {x^3}{6}+\frac {x \sin \left (2 a+2 b x-2 c x^2\right )}{8 c}-\frac {\int \sin \left (2 a+2 b x-2 c x^2\right ) \, dx}{8 c}-\frac {b \int x \cos \left (2 a+2 b x-2 c x^2\right ) \, dx}{4 c} \\ & = \frac {x^3}{6}+\frac {b \sin \left (2 a+2 b x-2 c x^2\right )}{16 c^2}+\frac {x \sin \left (2 a+2 b x-2 c x^2\right )}{8 c}-\frac {b^2 \int \cos \left (2 a+2 b x-2 c x^2\right ) \, dx}{8 c^2}+\frac {\cos \left (2 a+\frac {b^2}{2 c}\right ) \int \sin \left (\frac {(2 b-4 c x)^2}{8 c}\right ) \, dx}{8 c}-\frac {\sin \left (2 a+\frac {b^2}{2 c}\right ) \int \cos \left (\frac {(2 b-4 c x)^2}{8 c}\right ) \, dx}{8 c} \\ & = \frac {x^3}{6}-\frac {\sqrt {\pi } \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{3/2}}+\frac {\sqrt {\pi } \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \sin \left (2 a+\frac {b^2}{2 c}\right )}{16 c^{3/2}}+\frac {b \sin \left (2 a+2 b x-2 c x^2\right )}{16 c^2}+\frac {x \sin \left (2 a+2 b x-2 c x^2\right )}{8 c}-\frac {\left (b^2 \cos \left (2 a+\frac {b^2}{2 c}\right )\right ) \int \cos \left (\frac {(2 b-4 c x)^2}{8 c}\right ) \, dx}{8 c^2}-\frac {\left (b^2 \sin \left (2 a+\frac {b^2}{2 c}\right )\right ) \int \sin \left (\frac {(2 b-4 c x)^2}{8 c}\right ) \, dx}{8 c^2} \\ & = \frac {x^3}{6}+\frac {b^2 \sqrt {\pi } \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{5/2}}-\frac {\sqrt {\pi } \cos \left (2 a+\frac {b^2}{2 c}\right ) \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right )}{16 c^{3/2}}+\frac {\sqrt {\pi } \operatorname {FresnelC}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \sin \left (2 a+\frac {b^2}{2 c}\right )}{16 c^{3/2}}+\frac {b^2 \sqrt {\pi } \operatorname {FresnelS}\left (\frac {b-2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \sin \left (2 a+\frac {b^2}{2 c}\right )}{16 c^{5/2}}+\frac {b \sin \left (2 a+2 b x-2 c x^2\right )}{16 c^2}+\frac {x \sin \left (2 a+2 b x-2 c x^2\right )}{8 c} \\ \end{align*}

Mathematica [A] (verified)

Time = 0.44 (sec) , antiderivative size = 175, normalized size of antiderivative = 0.71 \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\frac {3 \sqrt {\pi } \operatorname {FresnelS}\left (\frac {-b+2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \left (c \cos \left (2 a+\frac {b^2}{2 c}\right )-b^2 \sin \left (2 a+\frac {b^2}{2 c}\right )\right )-3 \sqrt {\pi } \operatorname {FresnelC}\left (\frac {-b+2 c x}{\sqrt {c} \sqrt {\pi }}\right ) \left (b^2 \cos \left (2 a+\frac {b^2}{2 c}\right )+c \sin \left (2 a+\frac {b^2}{2 c}\right )\right )+\sqrt {c} \left (8 c^2 x^3+3 (b+2 c x) \sin (2 (a+x (b-c x)))\right )}{48 c^{5/2}} \]

[In]

Integrate[x^2*Sin[a + b*x - c*x^2]^2,x]

[Out]

(3*Sqrt[Pi]*FresnelS[(-b + 2*c*x)/(Sqrt[c]*Sqrt[Pi])]*(c*Cos[2*a + b^2/(2*c)] - b^2*Sin[2*a + b^2/(2*c)]) - 3*
Sqrt[Pi]*FresnelC[(-b + 2*c*x)/(Sqrt[c]*Sqrt[Pi])]*(b^2*Cos[2*a + b^2/(2*c)] + c*Sin[2*a + b^2/(2*c)]) + Sqrt[
c]*(8*c^2*x^3 + 3*(b + 2*c*x)*Sin[2*(a + x*(b - c*x))]))/(48*c^(5/2))

Maple [A] (verified)

Time = 0.40 (sec) , antiderivative size = 199, normalized size of antiderivative = 0.80

method	result	size
default	\(\frac {x^{3}}{6}+\frac {x \sin \left (-2 c \,x^{2}+2 b x +2 a \right )}{8 c}-\frac {b \left (-\frac {\sin \left (-2 c \,x^{2}+2 b x +2 a \right )}{4 c}+\frac {b \sqrt {\pi }\, \left (\cos \left (\frac {4 a c +b^{2}}{2 c}\right ) \operatorname {C}\left (\frac {2 c x -b}{\sqrt {\pi }\, \sqrt {c}}\right )+\sin \left (\frac {4 a c +b^{2}}{2 c}\right ) \operatorname {S}\left (\frac {2 c x -b}{\sqrt {\pi }\, \sqrt {c}}\right )\right )}{4 c^{\frac {3}{2}}}\right )}{4 c}+\frac {\sqrt {\pi }\, \left (\cos \left (\frac {4 a c +b^{2}}{2 c}\right ) \operatorname {S}\left (\frac {2 c x -b}{\sqrt {\pi }\, \sqrt {c}}\right )-\sin \left (\frac {4 a c +b^{2}}{2 c}\right ) \operatorname {C}\left (\frac {2 c x -b}{\sqrt {\pi }\, \sqrt {c}}\right )\right )}{16 c^{\frac {3}{2}}}\)	\(199\)
risch	\(-\frac {b^{2} \sqrt {\pi }\, {\mathrm e}^{-\frac {i \left (4 a c +b^{2}\right )}{2 c}} \operatorname {erf}\left (\sqrt {-2 i c}\, x +\frac {i b}{\sqrt {-2 i c}}\right )}{32 c^{2} \sqrt {-2 i c}}-\frac {i \sqrt {\pi }\, {\mathrm e}^{-\frac {i \left (4 a c +b^{2}\right )}{2 c}} \operatorname {erf}\left (\sqrt {-2 i c}\, x +\frac {i b}{\sqrt {-2 i c}}\right )}{32 c \sqrt {-2 i c}}+\frac {b^{2} \sqrt {\pi }\, {\mathrm e}^{\frac {i \left (4 a c +b^{2}\right )}{2 c}} \sqrt {2}\, \operatorname {erf}\left (-\sqrt {2}\, \sqrt {i c}\, x +\frac {i b \sqrt {2}}{2 \sqrt {i c}}\right )}{64 c^{2} \sqrt {i c}}-\frac {i \sqrt {\pi }\, {\mathrm e}^{\frac {i \left (4 a c +b^{2}\right )}{2 c}} \sqrt {2}\, \operatorname {erf}\left (-\sqrt {2}\, \sqrt {i c}\, x +\frac {i b \sqrt {2}}{2 \sqrt {i c}}\right )}{64 c \sqrt {i c}}+\frac {x^{3}}{6}+2 i \left (-\frac {i x}{16 c}-\frac {i b}{32 c^{2}}\right ) \sin \left (-2 c \,x^{2}+2 b x +2 a \right )\)	\(264\)

[In]

int(x^2*sin(-c*x^2+b*x+a)^2,x,method=_RETURNVERBOSE)

[Out]

1/6*x^3+1/8*x*sin(-2*c*x^2+2*b*x+2*a)/c-1/4*b/c*(-1/4*sin(-2*c*x^2+2*b*x+2*a)/c+1/4*b/c^(3/2)*Pi^(1/2)*(cos(1/
2*(4*a*c+b^2)/c)*FresnelC(1/Pi^(1/2)/c^(1/2)*(2*c*x-b))+sin(1/2*(4*a*c+b^2)/c)*FresnelS(1/Pi^(1/2)/c^(1/2)*(2*
c*x-b))))+1/16/c^(3/2)*Pi^(1/2)*(cos(1/2*(4*a*c+b^2)/c)*FresnelS(1/Pi^(1/2)/c^(1/2)*(2*c*x-b))-sin(1/2*(4*a*c+
b^2)/c)*FresnelC(1/Pi^(1/2)/c^(1/2)*(2*c*x-b)))

Fricas [A] (verification not implemented)

none

Time = 0.29 (sec) , antiderivative size = 187, normalized size of antiderivative = 0.75 \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\frac {8 \, c^{3} x^{3} - 6 \, {\left (2 \, c^{2} x + b c\right )} \cos \left (c x^{2} - b x - a\right ) \sin \left (c x^{2} - b x - a\right ) - 3 \, {\left (\pi b^{2} \cos \left (\frac {b^{2} + 4 \, a c}{2 \, c}\right ) + \pi c \sin \left (\frac {b^{2} + 4 \, a c}{2 \, c}\right )\right )} \sqrt {\frac {c}{\pi }} \operatorname {C}\left (\frac {{\left (2 \, c x - b\right )} \sqrt {\frac {c}{\pi }}}{c}\right ) - 3 \, {\left (\pi b^{2} \sin \left (\frac {b^{2} + 4 \, a c}{2 \, c}\right ) - \pi c \cos \left (\frac {b^{2} + 4 \, a c}{2 \, c}\right )\right )} \sqrt {\frac {c}{\pi }} \operatorname {S}\left (\frac {{\left (2 \, c x - b\right )} \sqrt {\frac {c}{\pi }}}{c}\right )}{48 \, c^{3}} \]

[In]

integrate(x^2*sin(-c*x^2+b*x+a)^2,x, algorithm="fricas")

[Out]

1/48*(8*c^3*x^3 - 6*(2*c^2*x + b*c)*cos(c*x^2 - b*x - a)*sin(c*x^2 - b*x - a) - 3*(pi*b^2*cos(1/2*(b^2 + 4*a*c
)/c) + pi*c*sin(1/2*(b^2 + 4*a*c)/c))*sqrt(c/pi)*fresnel_cos((2*c*x - b)*sqrt(c/pi)/c) - 3*(pi*b^2*sin(1/2*(b^
2 + 4*a*c)/c) - pi*c*cos(1/2*(b^2 + 4*a*c)/c))*sqrt(c/pi)*fresnel_sin((2*c*x - b)*sqrt(c/pi)/c))/c^3

Sympy [F]

\[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\int x^{2} \sin ^{2}{\left (a + b x - c x^{2} \right )}\, dx \]

[In]

integrate(x**2*sin(-c*x**2+b*x+a)**2,x)

[Out]

Integral(x**2*sin(a + b*x - c*x**2)**2, x)

Maxima [C] (verification not implemented)

Result contains complex when optimal does not.

Time = 0.99 (sec) , antiderivative size = 1617, normalized size of antiderivative = 6.52 \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\text {Too large to display} \]

[In]

integrate(x^2*sin(-c*x^2+b*x+a)^2,x, algorithm="maxima")

[Out]

-1/384*sqrt(2)*(24*(((-(I - 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt((4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1)
+ (I + 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1))*b^2*c^3 + 2*((I +
1)*sqrt(2)*gamma(3/2, 1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) - (I - 1)*sqrt(2)*gamma(3/2, -1/2*(4*I*c^2*x^2
- 4*I*b*c*x + I*b^2)/c))*c^4)*cos(1/2*(b^2 + 4*a*c)/c) + (((I + 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt((4*I*
c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1) - (I - 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x
+ I*b^2)/c)) - 1))*b^2*c^3 + 2*((I - 1)*sqrt(2)*gamma(3/2, 1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) - (I + 1)
*sqrt(2)*gamma(3/2, -1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*c^4)*sin(1/2*(b^2 + 4*a*c)/c))*x^3 + 36*((((I -
1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt((4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1) - (I + 1)*sqrt(2)*sqrt(pi)
*(erf(sqrt(1/2)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1))*b^3*c^2 + 2*(-(I + 1)*sqrt(2)*gamma(3/2, 1/2
*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) + (I - 1)*sqrt(2)*gamma(3/2, -1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*
b*c^3)*cos(1/2*(b^2 + 4*a*c)/c) + ((-(I + 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt((4*I*c^2*x^2 - 4*I*b*c*x + I
*b^2)/c)) - 1) + (I - 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1))*b^3
*c^2 + 2*(-(I - 1)*sqrt(2)*gamma(3/2, 1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) + (I + 1)*sqrt(2)*gamma(3/2, -1
/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*b*c^3)*sin(1/2*(b^2 + 4*a*c)/c))*x^2 - 4*sqrt(2)*(8*c^4*x^3 - 3*b*c^2
*(-I*e^(1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) + I*e^(-1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*cos(1/2*(b^
2 + 4*a*c)/c) + 3*b*c^2*(e^(1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) + e^(-1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^
2)/c))*sin(1/2*(b^2 + 4*a*c)/c))*((4*c^2*x^2 - 4*b*c*x + b^2)/c)^(3/2) + 18*(((-(I - 1)*sqrt(2)*sqrt(pi)*(erf(
sqrt(1/2)*sqrt((4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1) + (I + 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt(-(4*I
*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1))*b^4*c + 2*((I + 1)*sqrt(2)*gamma(3/2, 1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I
*b^2)/c) - (I - 1)*sqrt(2)*gamma(3/2, -1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*b^2*c^2)*cos(1/2*(b^2 + 4*a*c
)/c) + (((I + 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt((4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1) - (I - 1)*sqr
t(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1))*b^4*c + 2*((I - 1)*sqrt(2)*gamm
a(3/2, 1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) - (I + 1)*sqrt(2)*gamma(3/2, -1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I
*b^2)/c))*b^2*c^2)*sin(1/2*(b^2 + 4*a*c)/c))*x + 3*(((I - 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt((4*I*c^2*x^2
- 4*I*b*c*x + I*b^2)/c)) - 1) - (I + 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x + I*b^
2)/c)) - 1))*b^5 + 2*(-(I + 1)*sqrt(2)*gamma(3/2, 1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c) + (I - 1)*sqrt(2)*g
amma(3/2, -1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*b^3*c)*cos(1/2*(b^2 + 4*a*c)/c) + 3*((-(I + 1)*sqrt(2)*sq
rt(pi)*(erf(sqrt(1/2)*sqrt((4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1) + (I - 1)*sqrt(2)*sqrt(pi)*(erf(sqrt(1/2
)*sqrt(-(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c)) - 1))*b^5 + 2*(-(I - 1)*sqrt(2)*gamma(3/2, 1/2*(4*I*c^2*x^2 - 4*
I*b*c*x + I*b^2)/c) + (I + 1)*sqrt(2)*gamma(3/2, -1/2*(4*I*c^2*x^2 - 4*I*b*c*x + I*b^2)/c))*b^3*c)*sin(1/2*(b^
2 + 4*a*c)/c))/(c^4*((4*c^2*x^2 - 4*b*c*x + b^2)/c)^(3/2))

Giac [C] (verification not implemented)

Result contains complex when optimal does not.

Time = 0.35 (sec) , antiderivative size = 216, normalized size of antiderivative = 0.87 \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\frac {1}{6} \, x^{3} - \frac {{\left (c {\left (-2 i \, x + \frac {i \, b}{c}\right )} - 2 i \, b\right )} e^{\left (2 i \, c x^{2} - 2 i \, b x - 2 i \, a\right )} + \frac {i \, \sqrt {\pi } {\left (b^{2} + i \, c\right )} \operatorname {erf}\left (-\frac {1}{2} i \, \sqrt {c} {\left (2 \, x - \frac {b}{c}\right )} {\left (\frac {i \, c}{{\left | c \right |}} + 1\right )}\right ) e^{\left (-\frac {i \, b^{2} + 4 i \, a c}{2 \, c}\right )}}{\sqrt {c} {\left (\frac {i \, c}{{\left | c \right |}} + 1\right )}}}{32 \, c^{2}} - \frac {{\left (c {\left (2 i \, x - \frac {i \, b}{c}\right )} + 2 i \, b\right )} e^{\left (-2 i \, c x^{2} + 2 i \, b x + 2 i \, a\right )} - \frac {i \, \sqrt {\pi } {\left (b^{2} - i \, c\right )} \operatorname {erf}\left (\frac {1}{2} i \, \sqrt {c} {\left (2 \, x - \frac {b}{c}\right )} {\left (-\frac {i \, c}{{\left | c \right |}} + 1\right )}\right ) e^{\left (-\frac {-i \, b^{2} - 4 i \, a c}{2 \, c}\right )}}{\sqrt {c} {\left (-\frac {i \, c}{{\left | c \right |}} + 1\right )}}}{32 \, c^{2}} \]

[In]

integrate(x^2*sin(-c*x^2+b*x+a)^2,x, algorithm="giac")

[Out]

1/6*x^3 - 1/32*((c*(-2*I*x + I*b/c) - 2*I*b)*e^(2*I*c*x^2 - 2*I*b*x - 2*I*a) + I*sqrt(pi)*(b^2 + I*c)*erf(-1/2
*I*sqrt(c)*(2*x - b/c)*(I*c/abs(c) + 1))*e^(-1/2*(I*b^2 + 4*I*a*c)/c)/(sqrt(c)*(I*c/abs(c) + 1)))/c^2 - 1/32*(
(c*(2*I*x - I*b/c) + 2*I*b)*e^(-2*I*c*x^2 + 2*I*b*x + 2*I*a) - I*sqrt(pi)*(b^2 - I*c)*erf(1/2*I*sqrt(c)*(2*x -
b/c)*(-I*c/abs(c) + 1))*e^(-1/2*(-I*b^2 - 4*I*a*c)/c)/(sqrt(c)*(-I*c/abs(c) + 1)))/c^2

Mupad [F(-1)]

Timed out. \[ \int x^2 \sin ^2\left (a+b x-c x^2\right ) \, dx=\int x^2\,{\sin \left (-c\,x^2+b\,x+a\right )}^2 \,d x \]

[In]

int(x^2*sin(a + b*x - c*x^2)^2,x)

[Out]

int(x^2*sin(a + b*x - c*x^2)^2, x)