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 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 straight x squared minus straight x plus 1 over denominator straight x squared plus straight x plus 1 end fraction

Answer
space space space space space space space space space space space space space space space space space space fraction numerator 2 left parenthesis straight x squared minus 1 right parenthesis over denominator left parenthesis straight x squared plus straight x plus 1 right parenthesis squared end fraction

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