Optimal. Leaf size=290 \[ -\frac {1}{4 a \left (1-\sqrt {1-x^2}\right )}+\frac {1}{4 a \left (1+\sqrt {1-x^2}\right )}+\frac {(a+2 b) \tanh ^{-1}\left (\sqrt {1-x^2}\right )}{2 a^2}-\frac {\sqrt {c} \left (a+b+\frac {b^2+a (b-2 c)}{\sqrt {b^2-4 a c}}\right ) \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {b+2 c-\sqrt {b^2-4 a c}}}\right )}{\sqrt {2} a^2 \sqrt {b+2 c-\sqrt {b^2-4 a c}}}-\frac {\sqrt {c} \left (a+b-\frac {b^2+a (b-2 c)}{\sqrt {b^2-4 a c}}\right ) \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {b+2 c+\sqrt {b^2-4 a c}}}\right )}{\sqrt {2} a^2 \sqrt {b+2 c+\sqrt {b^2-4 a c}}} \]
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Rubi [A]
time = 1.52, antiderivative size = 290, normalized size of antiderivative = 1.00, number of steps
used = 8, number of rules used = 6, integrand size = 29, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.207, Rules used = {1265, 911,
1301, 213, 1180, 214} \begin {gather*} -\frac {\sqrt {c} \left (\frac {a (b-2 c)+b^2}{\sqrt {b^2-4 a c}}+a+b\right ) \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {-\sqrt {b^2-4 a c}+b+2 c}}\right )}{\sqrt {2} a^2 \sqrt {-\sqrt {b^2-4 a c}+b+2 c}}-\frac {\sqrt {c} \left (-\frac {a (b-2 c)+b^2}{\sqrt {b^2-4 a c}}+a+b\right ) \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {\sqrt {b^2-4 a c}+b+2 c}}\right )}{\sqrt {2} a^2 \sqrt {\sqrt {b^2-4 a c}+b+2 c}}+\frac {(a+2 b) \tanh ^{-1}\left (\sqrt {1-x^2}\right )}{2 a^2}-\frac {1}{4 a \left (1-\sqrt {1-x^2}\right )}+\frac {1}{4 a \left (\sqrt {1-x^2}+1\right )} \end {gather*}
Antiderivative was successfully verified.
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Rule 213
Rule 214
Rule 911
Rule 1180
Rule 1265
Rule 1301
Rubi steps
\begin {align*} \int \frac {\sqrt {1-x^2}}{x^3 \left (a+b x^2+c x^4\right )} \, dx &=\frac {1}{2} \text {Subst}\left (\int \frac {\sqrt {1-x}}{x^2 \left (a+b x+c x^2\right )} \, dx,x,x^2\right )\\ &=-\text {Subst}\left (\int \frac {x^2}{\left (1-x^2\right )^2 \left (a+b+c+(-b-2 c) x^2+c x^4\right )} \, dx,x,\sqrt {1-x^2}\right )\\ &=-\text {Subst}\left (\int \left (\frac {1}{4 a (-1+x)^2}+\frac {1}{4 a (1+x)^2}+\frac {a+2 b}{2 a^2 \left (-1+x^2\right )}+\frac {b (a+b+c)-(a+b) c x^2}{a^2 \left (a+b+c-(b+2 c) x^2+c x^4\right )}\right ) \, dx,x,\sqrt {1-x^2}\right )\\ &=-\frac {1}{4 a \left (1-\sqrt {1-x^2}\right )}+\frac {1}{4 a \left (1+\sqrt {1-x^2}\right )}-\frac {\text {Subst}\left (\int \frac {b (a+b+c)-(a+b) c x^2}{a+b+c+(-b-2 c) x^2+c x^4} \, dx,x,\sqrt {1-x^2}\right )}{a^2}-\frac {(a+2 b) \text {Subst}\left (\int \frac {1}{-1+x^2} \, dx,x,\sqrt {1-x^2}\right )}{2 a^2}\\ &=-\frac {1}{4 a \left (1-\sqrt {1-x^2}\right )}+\frac {1}{4 a \left (1+\sqrt {1-x^2}\right )}+\frac {(a+2 b) \tanh ^{-1}\left (\sqrt {1-x^2}\right )}{2 a^2}+\frac {\left (c \left (a+b-\frac {b^2+a (b-2 c)}{\sqrt {b^2-4 a c}}\right )\right ) \text {Subst}\left (\int \frac {1}{\frac {1}{2} (-b-2 c)-\frac {1}{2} \sqrt {b^2-4 a c}+c x^2} \, dx,x,\sqrt {1-x^2}\right )}{2 a^2}+\frac {\left (c \left (a+b+\frac {b^2+a (b-2 c)}{\sqrt {b^2-4 a c}}\right )\right ) \text {Subst}\left (\int \frac {1}{\frac {1}{2} (-b-2 c)+\frac {1}{2} \sqrt {b^2-4 a c}+c x^2} \, dx,x,\sqrt {1-x^2}\right )}{2 a^2}\\ &=-\frac {1}{4 a \left (1-\sqrt {1-x^2}\right )}+\frac {1}{4 a \left (1+\sqrt {1-x^2}\right )}+\frac {(a+2 b) \tanh ^{-1}\left (\sqrt {1-x^2}\right )}{2 a^2}-\frac {\sqrt {c} \left (a+b+\frac {b^2+a (b-2 c)}{\sqrt {b^2-4 a c}}\right ) \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {b+2 c-\sqrt {b^2-4 a c}}}\right )}{\sqrt {2} a^2 \sqrt {b+2 c-\sqrt {b^2-4 a c}}}-\frac {\sqrt {c} \left (a+b-\frac {b^2+a (b-2 c)}{\sqrt {b^2-4 a c}}\right ) \tanh ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {b+2 c+\sqrt {b^2-4 a c}}}\right )}{\sqrt {2} a^2 \sqrt {b+2 c+\sqrt {b^2-4 a c}}}\\ \end {align*}
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Mathematica [A]
time = 1.54, size = 307, normalized size = 1.06 \begin {gather*} \frac {-\frac {a \sqrt {1-x^2}}{x^2}+\frac {\sqrt {2} \sqrt {c} \left (b \left (-b+\sqrt {b^2-4 a c}\right )+a \left (-b+2 c+\sqrt {b^2-4 a c}\right )\right ) \tan ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {-b-2 c-\sqrt {b^2-4 a c}}}\right )}{\sqrt {b^2-4 a c} \sqrt {-b-2 c-\sqrt {b^2-4 a c}}}+\frac {\sqrt {2} \sqrt {c} \left (b \left (b+\sqrt {b^2-4 a c}\right )+a \left (b-2 c+\sqrt {b^2-4 a c}\right )\right ) \tan ^{-1}\left (\frac {\sqrt {2} \sqrt {c} \sqrt {1-x^2}}{\sqrt {-b-2 c+\sqrt {b^2-4 a c}}}\right )}{\sqrt {b^2-4 a c} \sqrt {-b-2 c+\sqrt {b^2-4 a c}}}+(a+2 b) \tanh ^{-1}\left (\sqrt {1-x^2}\right )}{2 a^2} \end {gather*}
Antiderivative was successfully verified.
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Maple [B] Leaf count of result is larger than twice the leaf count of optimal. \(579\) vs.
\(2(240)=480\).
time = 0.17, size = 580, normalized size = 2.00
method | result | size |
default | \(-\frac {-2 a \left (\frac {\left (2 \sqrt {-4 a c +b^{2}}\, a^{2} c -\sqrt {-4 a c +b^{2}}\, a \,b^{2}+3 \sqrt {-4 a c +b^{2}}\, a b c -\sqrt {-4 a c +b^{2}}\, b^{3}+4 a^{2} b c -4 a^{2} c^{2}-a \,b^{3}+5 a \,b^{2} c -b^{4}\right ) \arctan \left (\frac {\frac {2 a \left (\sqrt {-x^{2}+1}-1\right )^{2}}{x^{2}}+2 \sqrt {-4 a c +b^{2}}+2 a +2 b}{2 \sqrt {4 a c -2 b^{2}-2 \sqrt {-4 a c +b^{2}}\, a -2 b \sqrt {-4 a c +b^{2}}-2 a b}}\right )}{2 a \left (4 a c -b^{2}\right ) \sqrt {4 a c -2 b^{2}-2 \sqrt {-4 a c +b^{2}}\, a -2 b \sqrt {-4 a c +b^{2}}-2 a b}}-\frac {\left (-2 \sqrt {-4 a c +b^{2}}\, a^{2} c +\sqrt {-4 a c +b^{2}}\, a \,b^{2}-3 \sqrt {-4 a c +b^{2}}\, a b c +\sqrt {-4 a c +b^{2}}\, b^{3}+4 a^{2} b c -4 a^{2} c^{2}-a \,b^{3}+5 a \,b^{2} c -b^{4}\right ) \arctan \left (\frac {-\frac {2 a \left (\sqrt {-x^{2}+1}-1\right )^{2}}{x^{2}}+2 \sqrt {-4 a c +b^{2}}-2 a -2 b}{2 \sqrt {4 a c -2 b^{2}+2 \sqrt {-4 a c +b^{2}}\, a +2 b \sqrt {-4 a c +b^{2}}-2 a b}}\right )}{2 a \left (4 a c -b^{2}\right ) \sqrt {4 a c -2 b^{2}+2 \sqrt {-4 a c +b^{2}}\, a +2 b \sqrt {-4 a c +b^{2}}-2 a b}}\right )-\frac {2 b}{\frac {\left (\sqrt {-x^{2}+1}-1\right )^{2}}{x^{2}}+1}}{a^{2}}+\frac {-\frac {\left (-x^{2}+1\right )^{\frac {3}{2}}}{2 x^{2}}-\frac {\sqrt {-x^{2}+1}}{2}+\frac {\arctanh \left (\frac {1}{\sqrt {-x^{2}+1}}\right )}{2}}{a}-\frac {b \left (\sqrt {-x^{2}+1}-\arctanh \left (\frac {1}{\sqrt {-x^{2}+1}}\right )\right )}{a^{2}}\) | \(580\) |
risch | \(\text {Expression too large to display}\) | \(2718\) |
Verification of antiderivative is not currently implemented for this CAS.
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Maxima [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \text {Failed to integrate} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 2799 vs.
\(2 (236) = 472\).
time = 7.20, size = 2799, normalized size = 9.65 \begin {gather*} \text {Too large to display} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Sympy [F]
time = 0.00, size = 0, normalized size = 0.00 \begin {gather*} \int \frac {\sqrt {- \left (x - 1\right ) \left (x + 1\right )}}{x^{3} \left (a + b x^{2} + c x^{4}\right )}\, dx \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Giac [B] Leaf count of result is larger than twice the leaf count of optimal. 1675 vs.
\(2 (236) = 472\).
time = 6.68, size = 1675, normalized size = 5.78 \begin {gather*} -\frac {{\left (\sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} b^{5} - 8 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a b^{3} c + 2 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} b^{4} c + 2 \, b^{5} c + 16 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a^{2} b c^{2} - 8 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a b^{2} c^{2} + 5 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} b^{3} c^{2} - 16 \, a b^{3} c^{2} + 2 \, b^{4} c^{2} - 20 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a b c^{3} + 32 \, a^{2} b c^{3} - 12 \, a b^{2} c^{3} + 16 \, a^{2} c^{4} - \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} b^{4} + 6 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a b^{2} c - 2 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} b^{3} c - 8 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a^{2} c^{2} + 4 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a b c^{2} - 5 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} b^{2} c^{2} + 10 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} - \sqrt {b^{2} - 4 \, a c} c} a c^{3} - 2 \, {\left (b^{2} - 4 \, a c\right )} b^{3} c + 8 \, {\left (b^{2} - 4 \, a c\right )} a b c^{2} - 2 \, {\left (b^{2} - 4 \, a c\right )} b^{2} c^{2} + 4 \, {\left (b^{2} - 4 \, a c\right )} a c^{3}\right )} \arctan \left (\frac {2 \, \sqrt {\frac {1}{2}} \sqrt {-x^{2} + 1}}{\sqrt {-\frac {a^{2} b + 2 \, a^{2} c + \sqrt {-4 \, {\left (a^{3} + a^{2} b + a^{2} c\right )} a^{2} c + {\left (a^{2} b + 2 \, a^{2} c\right )}^{2}}}{a^{2} c}}}\right )}{4 \, {\left (a^{2} b^{4} - 8 \, a^{3} b^{2} c + 2 \, a^{2} b^{3} c + 16 \, a^{4} c^{2} - 8 \, a^{3} b c^{2} + 5 \, a^{2} b^{2} c^{2} - 20 \, a^{3} c^{3}\right )} {\left | c \right |}} - \frac {{\left (\sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} b^{5} - 8 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a b^{3} c + 2 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} b^{4} c - 2 \, b^{5} c + 16 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a^{2} b c^{2} - 8 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a b^{2} c^{2} + 5 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} b^{3} c^{2} + 16 \, a b^{3} c^{2} - 2 \, b^{4} c^{2} - 20 \, \sqrt {2} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a b c^{3} - 32 \, a^{2} b c^{3} + 12 \, a b^{2} c^{3} - 16 \, a^{2} c^{4} + \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} b^{4} - 6 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a b^{2} c + 2 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} b^{3} c + 8 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a^{2} c^{2} - 4 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a b c^{2} + 5 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} b^{2} c^{2} - 10 \, \sqrt {2} \sqrt {b^{2} - 4 \, a c} \sqrt {-b c - 2 \, c^{2} + \sqrt {b^{2} - 4 \, a c} c} a c^{3} + 2 \, {\left (b^{2} - 4 \, a c\right )} b^{3} c - 8 \, {\left (b^{2} - 4 \, a c\right )} a b c^{2} + 2 \, {\left (b^{2} - 4 \, a c\right )} b^{2} c^{2} - 4 \, {\left (b^{2} - 4 \, a c\right )} a c^{3}\right )} \arctan \left (\frac {2 \, \sqrt {\frac {1}{2}} \sqrt {-x^{2} + 1}}{\sqrt {-\frac {a^{2} b + 2 \, a^{2} c - \sqrt {-4 \, {\left (a^{3} + a^{2} b + a^{2} c\right )} a^{2} c + {\left (a^{2} b + 2 \, a^{2} c\right )}^{2}}}{a^{2} c}}}\right )}{4 \, {\left (a^{2} b^{4} - 8 \, a^{3} b^{2} c + 2 \, a^{2} b^{3} c + 16 \, a^{4} c^{2} - 8 \, a^{3} b c^{2} + 5 \, a^{2} b^{2} c^{2} - 20 \, a^{3} c^{3}\right )} {\left | c \right |}} + \frac {{\left (a + 2 \, b\right )} \log \left (\sqrt {-x^{2} + 1} + 1\right )}{4 \, a^{2}} - \frac {{\left (a + 2 \, b\right )} \log \left (-\sqrt {-x^{2} + 1} + 1\right )}{4 \, a^{2}} - \frac {\sqrt {-x^{2} + 1}}{2 \, a x^{2}} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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Mupad [B]
time = 1.41, size = 825, normalized size = 2.84 \begin {gather*} \frac {\ln \left (\sqrt {\frac {1}{x^2}-1}-\sqrt {\frac {1}{x^2}}\right )}{2\,a}-\frac {\ln \left (\sqrt {\frac {1}{x^2}-1}-\sqrt {\frac {1}{x^2}}\right )\,\left (a+b\right )}{a^2}-\frac {\sqrt {1-x^2}}{2\,a\,x^2}-\frac {\ln \left (\frac {\frac {\left (x\,\sqrt {-\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}}+1\right )\,1{}\mathrm {i}}{\sqrt {\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}+1}}+\sqrt {1-x^2}\,1{}\mathrm {i}}{x+\sqrt {-\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}}}\right )\,\left (4\,a^2\,c-a\,b^2-b^3+b^2\,\sqrt {b^2-4\,a\,c}+4\,a\,b\,c+a\,b\,\sqrt {b^2-4\,a\,c}-2\,a\,c\,\sqrt {b^2-4\,a\,c}\right )}{4\,a^2\,\left (4\,a\,c-b^2\right )\,\sqrt {\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}+1}}+\frac {\ln \left (\frac {\frac {\left (x\,\sqrt {-\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}}+1\right )\,1{}\mathrm {i}}{\sqrt {\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}+1}}+\sqrt {1-x^2}\,1{}\mathrm {i}}{x+\sqrt {-\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}}}\right )\,\left (a\,b^2-4\,a^2\,c+b^3+b^2\,\sqrt {b^2-4\,a\,c}-4\,a\,b\,c+a\,b\,\sqrt {b^2-4\,a\,c}-2\,a\,c\,\sqrt {b^2-4\,a\,c}\right )}{4\,a^2\,\sqrt {\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}+1}\,\left (4\,a\,c-b^2\right )}-\frac {\ln \left (\frac {\frac {\left (x\,\sqrt {-\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}}-1\right )\,1{}\mathrm {i}}{\sqrt {\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}+1}}-\sqrt {1-x^2}\,1{}\mathrm {i}}{x-\sqrt {-\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}}}\right )\,\left (4\,a^2\,c-a\,b^2-b^3+b^2\,\sqrt {b^2-4\,a\,c}+4\,a\,b\,c+a\,b\,\sqrt {b^2-4\,a\,c}-2\,a\,c\,\sqrt {b^2-4\,a\,c}\right )}{4\,a^2\,\left (4\,a\,c-b^2\right )\,\sqrt {\frac {b+\sqrt {b^2-4\,a\,c}}{2\,c}+1}}+\frac {\ln \left (\frac {\frac {\left (x\,\sqrt {-\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}}-1\right )\,1{}\mathrm {i}}{\sqrt {\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}+1}}-\sqrt {1-x^2}\,1{}\mathrm {i}}{x-\sqrt {-\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}}}\right )\,\left (a\,b^2-4\,a^2\,c+b^3+b^2\,\sqrt {b^2-4\,a\,c}-4\,a\,b\,c+a\,b\,\sqrt {b^2-4\,a\,c}-2\,a\,c\,\sqrt {b^2-4\,a\,c}\right )}{4\,a^2\,\sqrt {\frac {b-\sqrt {b^2-4\,a\,c}}{2\,c}+1}\,\left (4\,a\,c-b^2\right )} \end {gather*}
Verification of antiderivative is not currently implemented for this CAS.
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