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2 April, 03:58

I f 5 x 2 - 2 x y + 7 y 2 = 0 t h e n d y d x =

+2
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  1. 2 April, 04:03
    0
    Do u want the first or second derivative

    df/dx = 10-2y, df/dy = - 2y+14,

    then second deriv is df/dxdy=-2

    df/dydx=0
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