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EXPLAIN DERIVATIVES OF COMPOSITE FUNCTION WITH EXAMPLE

If f and g are two functions defined by y = f(u) and u = g(x) respectively then a function defined by y = f [g(x)] or fog(x) is called a composite function or a function of a function.
If f and g are differentiable and are defined by y = f (u) and u = g (x), then the composite function y = f [ g (x) ] is differentiable and we have


eg:


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