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Questions  

 A curve passes through (2,3) and satisfying the D.E 0xty(t)dt=x2y(x),x>0 is 

a
x2+y2=13
b
y2=92x
c
x28+y218=1
d
xy=C

detailed solution

Correct option is D

∫0x ty(t)dt=x2y(x) Differentiating w.r.t. x, we getxy(x)+x2y1(x)=0→xdydx+y=0⇒log⁡x+log⁡y=log⁡C⇒xy=C

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The general solution of the differential equation 1+y2dx+1+x2dy=0 is


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