solution of both questions
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1st step: Divide numerator and denominator by cos x
2nd step:Obtained expression is (1+tanx)/(1-tanx)
3rd step :Now write 1 as tan(π/4)
4th step : You'll get the latter of tan(π/4+x)
5th step :Now take derivative and done
2nd step:Obtained expression is (1+tanx)/(1-tanx)
3rd step :Now write 1 as tan(π/4)
4th step : You'll get the latter of tan(π/4+x)
5th step :Now take derivative and done
krishnaajipatel:
thanks
please help me in second question to please
let me have a look
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