Q. 55.0( 7 Votes )

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

cot2x

Answer :

Formulae :




Let,


y = cot2 x


and u = cot x


therefore, y= u2


Differentiating above equation w.r.t. x,


………… By chain rule



………….


= 2 cot x .(- cosec2 x)


= - 2cot x . cosec2 x


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