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Sir kindly send me the solution for question number 33

Sir kindly send me the solution for question number 33
 

Question Image
Grade:11

1 Answers

Aditya Gupta
2080 Points
2 years ago
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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