Q. 154.9( 9 Votes )

Differentiate each of the following w.r.t. x:



Answer :

Formulae :


• 1 – sin2x = cos2x




Let,



Multiplying numerator and denominator by (1+sin x),




……………. (1 – sin2x = cos2x)




y = sec x + tan x


Differentiating above equation w.r.t. x,




………….



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