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Question

x4+7x2y2+9y4=24xy2thendydx=

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Solution

We have,
x4+7x2y2+9y4=24xy2
Differentiating w.r.t. x on both sides,
4x3+7y2(2x)+7x2.2ydydx+36y3dydx=24[2yxdydx+y2]
4x3+14xy2+14x2ydydx+36y3dydx=48xydydx+24y2
dydx[14x2y+36y348xy]=24y214xy24x3
dydx=24y214xy24x314x2y+36y348xy

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