Given :

To show :

Formula used : =

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If u and v are functions of x,then = u + v

The CHAIN RULE states that the derivative of f(g(x)) is f’(g(x)).g’(x)

y = x +

y² = xy + 1

Differentiating with respect to x

= + 0 (as differentiation of constant is zero )

2y. = x. + y

= y

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