Limits and Derivatives

Limits and Derivatives

Question

Find  space space space space space space space space space space space space space space space space space space space space dy over dx space space if space left parenthesis straight i right parenthesis space straight y space space equals space fraction numerator 1 minus square root of straight x over denominator 1 plus square root of straight x end fraction

Answer
space space space space space space space space space space space space space space space fraction numerator negative 1 over denominator square root of straight x left parenthesis 1 plus square root of straight x right parenthesis squared end fraction

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