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Sir kindly send me the solution for question number 33
Simply write tan^2y= (1+x^2)/(1+x)= f(x)Now differentiate both sides wrt x using chain rule.2tany*sec^2y*dy/dx= f'(x) using (u/v)' formula.Write sec^2y= 1+tan^2y and it is then easy to find dy/dx.
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