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4.8
Problems 351 to 400
4.8.1
\(x^3 y'(x)=(x+1) y(x)^2\)
4.8.2
\(x^3 y'(x)+x^2 y(x) \left (1-x^2 y(x)\right )+20=0\)
4.8.3
\(x^6 \left (-y(x)^2\right )+x^3 y'(x)+(3-2 x) x^2 y(x)+3=0\)
4.8.4
\(x^3 y'(x)=y(x) \left (2 x^2+y(x)^2\right )\)
4.8.5
\(x^3 y'(x)=\cos (y(x)) \left (\cos (y(x))-2 x^2 \sin (y(x))\right )\)
4.8.6
\(x \left (x^2+1\right ) y'(x)=a x^2+y(x)\)
4.8.7
\(x \left (1-x^2\right ) y'(x)=a x^2+y(x)\)
4.8.8
\(x \left (x^2+1\right ) y'(x)=a x^3+y(x)\)
4.8.9
\(x \left (x^2+1\right ) y'(x)=a-x^2 y(x)\)
4.8.10
\(x \left (x^2+1\right ) y'(x)=\left (1-x^2\right ) y(x)\)
4.8.11
\(x \left (1-x^2\right ) y'(x)=\left (x^2-x+1\right ) y(x)\)
4.8.12
\(x \left (1-x^2\right ) y'(x)=a x^3+\left (1-2 x^2\right ) y(x)\)
4.8.13
\(x \left (1-x^2\right ) y'(x)=\left (1-2 x^2\right ) y(x)+\left (1-x^2\right ) x^3\)
4.8.14
\(x \left (x^2+1\right ) y'(x)=2 \left (1-2 x^2 y(x)\right )\)
4.8.15
\(x \left (x^2+1\right ) y'(x)=x-\left (5 x^2+3\right ) y(x)\)
4.8.16
\(\left (1-x^2\right ) x y'(x)+\left (1-x^2\right ) y(x)^2+x^2=0\)
4.8.17
\((1-x) x^2 y'(x)=(2-x) x y(x)-y(x)^2\)
4.8.18
\(2 x^3 y'(x)=y(x) \left (x^2-y(x)^2\right )\)
4.8.19
\(2 x^3 y'(x)=y(x) \left (a y(x)^2+3 x^2\right )\)
4.8.20
\(6 x^3 y'(x)=4 x^2 y(x)+(1-3 x) y(x)^4\)
4.8.21
\(x y'(x) \left (a+b x+c x^2\right )-y(x) \left (a+b x+c x^2\right )+x^2=y(x)^2\)
4.8.22
\(x^4 y'(x)=y(x) \left (x^3+y(x)\right )\)
4.8.23
\(a^2+x^4 y'(x)+x^4 y(x)^2=0\)
4.8.24
\(x^4 y'(x)+x^3 y(x)+\csc (x y(x))=0\)
4.8.25
\(\left (1-x^4\right ) y'(x)=2 x \left (1-y(x)^2\right )\)
4.8.26
\(x \left (1-x^3\right ) y'(x)=2 x-\left (1-4 x^3\right ) y(x)\)
4.8.27
\(x \left (1-x^3\right ) y'(x)=x^2+y(x) (1-2 x y(x))\)
4.8.28
\(x^2 \left (1-x^2\right ) y'(x)=y(x) \left (x-3 x^3 y(x)\right )\)
4.8.29
\(x \left (1-2 x^3\right ) y'(x)=2 \left (1-x^3\right ) y(x)\)
4.8.30
\(\left (y'(x)+y(x)^2\right ) \left (a+b x+c x^2\right )^2+A=0\)
4.8.31
\(x^5 y'(x)=1-3 x^4 y(x)\)
4.8.32
\(x \left (1-x^4\right ) y'(x)=\left (1-x^4\right ) y(x)+2 x \left (x^2-y(x)^2\right )\)
4.8.33
\(x^7 y'(x)+5 x^3 y(x)^2+2 \left (x^2+1\right ) y(x)^3=0\)
4.8.34
\(x^n y'(x)=a+b x^{n-1} y(x)\)
4.8.35
\(x^n y'(x)=x^{2 n-1}-y(x)^2\)
4.8.36
\(y(x) \left (x^{n-1}+y(x)\right )+x^n y'(x)+x^2=0\)
4.8.37
\((1-n) x^{n-1}+x^{2 n-2}+x^n y'(x)+y(x)^2=0\)
4.8.38
\(x^n y'(x)=a^2 x^{2 n-2}+b^2 y(x)^2\)
4.8.39
\(x^n y'(x)=x^{n-1} \left (a x^{2 n}-b y(x)^2+n y(x)\right )\)
4.8.40
\(x^{2 n} y'(x)=-n x^{n-1}+x^n y(x) \left (x^{2 n} y(x)^2-3 x^n y(x)+1\right )+1\)
4.8.41
\(x^k y'(x)=a x^m+b y(x)^n\)
4.8.42
\(\sqrt {x^2+1} y'(x)=2 x-y(x)\)
4.8.43
\(\sqrt {1-x^2} y'(x)=y(x)^2+1\)
4.8.44
\(\left (x-\sqrt {x^2+1}\right ) y'(x)=y(x)+\sqrt {y(x)^2+1}\)
4.8.45
\(\sqrt {a^2+x^2} y'(x)+y(x)+x=\sqrt {a^2+x^2}\)
4.8.46
\(\sqrt {b^2+x^2} y'(x)=\sqrt {a^2+y(x)^2}\)
4.8.47
\(\sqrt {b^2-x^2} y'(x)=\sqrt {a^2-y(x)^2}\)
4.8.48
\(x \sqrt {a^2+x^2} y'(x)=y(x) \sqrt {b^2+y(x)^2}\)
4.8.49
\(x \sqrt {x^2-a^2} y'(x)=y(x) \sqrt {y(x)^2-b^2}\)
4.8.50
\(\sqrt {X} y'(x)+\sqrt {Y}=0\)
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