1.

Find derivatives of the following functions.tan x cot 2x

Answer»

Solution :`y = TAN x. cot 2X
dy/dx = d/dx(tan x).COT2X + tan x .d/dx(cot2x)
= sec^2 x/(cot 2x) + tan x. (-cosec^2 x). d/dx(2x)
sec^2 x. cot2x - 2TAN x. cosec^2 x`


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