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4.46
Problems 2251 to 2300
4.46.1
\(x^2 y''''(x)=2 y''(x)\)
4.46.2
\(x^2 y''''(x)+4 x y'''(x)+2 y''(x)=0\)
4.46.3
\(x^2 y''''(x)+6 x y'''(x)+6 y''(x)=0\)
4.46.4
\(x^2 y''''(x)+8 x y'''(x)+12 y''(x)=0\)
4.46.5
\(x^2 y''''(x)+8 x y'''(x)+a^2 (-y(x))+12 y''(x)=0\)
4.46.6
\((a+x)^2 y''''(x)=1\)
4.46.7
\(32 x (a-b+2) y'''(x)+16 x^2 y''''(x)+16 (a-b+1) (a-b+2) y''(x)+c^4 (-y(x))=0\)
4.46.8
\(x^3 y''''(x)+2 x^2 y'''(x)+a^4 \left (-x^3\right ) y(x)-x y''(x)=0\)
4.46.9
\(x^3 y''''(x)+6 x^2 y'''(x)+6 x y''(x)=0\)
4.46.10
\(x^2 (a+b+c+3) y'''(x)+x^3 y''''(x)+x (a b+a c+a+b c+b+c+1) y''(x)-y'(x) (x-a b c)-k y(x)=0\)
4.46.11
\(x^4 y''''(x)+6 x^3 y'''(x)+4 x^2 y''(x)-2 x y'(x)-4 y(x)=0\)
4.46.12
\(x^4 y''''(x)+6 x^3 y'''(x)+9 x^2 y''(x)+3 x y'(x)+y(x)=0\)
4.46.13
\(x^4 y''''(x)+8 x^3 y'''(x)+12 x^2 y''(x)=0\)
4.46.14
\(x^4 y''''(x)+8 x^3 y'''(x)+a y(x)+12 x^2 y''(x)=0\)
4.46.15
\(\text {A1} x^3 y'''(x)+x^4 y''''(x)+\text {A2} x^2 y''(x)+\text {A3} x y'(x)+\text {A4} y(x)=0\)
4.46.16
\(16 a^4 x^4 y''''(x)-32 (1-2 a) a^2 x^3 y'''(x)+16 (1-2 a) (1-a) a^2 x^2 y''(x)-b^4 x^{2/a} y(x)=0\)
4.46.17
\(4 \left (e^x+2\right ) y'''(x)+\left (2 x+e^x\right ) y''''(x)+6 e^x y''(x)+4 e^x y'(x)+e^x y(x)=0\)
4.46.18
\(-y'''(x)+y'''''(x)-2 y''(x)+2 y'(x)=0\)
4.46.19
\(2 y'''(x)+y'''''(x)+y'(x)=0\)
4.46.20
\(2 y'''(x)+y'''''(x)+y'(x)=a x+b \cos (x)+c \sin (x)\)
4.46.21
\(y''''''(x)=0\)
4.46.22
\(y''''''(x)+a y(x)=0\)
4.46.23
\(2 y'''(x)+y''''''(x)+y(x)=0\)
4.46.24
\(y''''''''(x)=y(x)\)
4.46.25
\(y''''''''(x)-2 y''''+y(x)=0\)
4.46.26
\(y^{(2 n)}(x)=a^{2 n} y(x)\)
4.46.27
\(x^n y^{(2 n)}(x)=y(x)\)
4.46.28
\(x^{n+\genfrac {}{}{}{}{1}{2}} y^{(2 n+1)}(x)=y(x)\)
4.46.29
\(y^{(n)}(x)=e^x x\)
4.46.30
\(a m x^{m-1} y(x)+a x^m y'(x)+y^{(n)}(x)=0\)
4.46.31
\((a-x)^n (b-x)^n y^{(n)}(x)=c y(x)\)
4.46.32
\(y'''(x)=y'(x) \left (y'(x)+1\right )\)
4.46.33
\(y'''(x)+y'(x)^2-y(x) y'(x)=0\)
4.46.34
\(y'''(x)+a y(x) y''(x)=0\)
4.46.35
\(x^2 y'''(x)+x y''(x)-(1-2 x y(x)) y'(x)+y(x)^2=f(x)\)
4.46.36
\(x^2 y'''(x)-x (1-y(x)) y''(x)+x y'(x)^2+(1-y(x)) y'(x)=0\)
4.46.37
\(y(x) y'''(x)+y(x)^3 y'(x)-y'(x) y''(x)=0\)
4.46.38
\((a+y(x)) y'''(x)+3 y'(x) y''(x)=0\)
4.46.39
\(x^3 y(x) y'''(x)+3 x^3 y'(x) y''(x)+9 x^2 y(x) y''(x)+9 x^2 y'(x)^2+18 x y(x) y'(x)+3 y(x)^2=0\)
4.46.40
\(\left (y(x)^2+x\right ) y'''(x)+3 y''(x)+2 y'(x)^3+6 y(x) y'(x) y''(x)=0\)
4.46.41
\(4 y(x)^2 y'''(x)+15 y'(x)^3-18 y(x) y'(x) y''(x)=0\)
4.46.42
\(9 y(x)^2 y'''(x)+40 y'(x)^3-45 y(x) y'(x) y''(x)=0\)
4.46.43
\(y'(x) y'''(x)+y'(x)^2=2 y''(x)^2\)
4.46.44
\(y'(x) y''(x)=a x y'(x)^5+3 y''(x)^2\)
4.46.45
\(2 y'(x) y'''(x)=2 y''(x)^2\)
4.46.46
\(\left (y'(x)^2+1\right ) y'''(x)=3 y'(x) y''(x)^2\)
4.46.47
\(\left (y'(x)^2+1\right ) y'''(x)=y''(x)^2 \left (a+3 y'(x)\right )\)
4.46.48
\(y'(x)^3 y'''(x)=1\)
4.46.49
\(y''(x) y'''(x)=2\)
4.46.50
\(y''(x) y'''(x)=a \sqrt {b^2 y''(x)^2+1}\)
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