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Question

If the general solutions of a differential equation is (y+c)2=cx, where c is an arbitrary constant, then the order and degree of differential equation are:

A
1,2
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B
2,1
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C
1,1
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D
None of these
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Solution

The correct option is D 1,2
Given general solution is (y+c)2=cx
Now differentiate it with respect to x on both sides
we get 2(y+c)dydx=c , Let dydx be Y
c=2yY12Y
By substituting c in general solution , we get (y+2yY12Y)2=2yY12Yx
y2=2yxY(12Y)=2yxY4yxY2
Therefore the order of equation is 1 and the degree of equation is 2
Therefore option A is correct

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