Que in the pic!
Q. Find the derivative of the given function:
y = 1 x 2 + 1 x

     y = 1x2 + 1xy = x-2 + x-1dydx = -2x-2-1 - 1×x-1-1dydx = -2x3 - 1x2Using : ddxxn = nxn-1

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