If y - log tan x - show that d y d x - 2 cosec 2 x

y=log( tan x #160; ) #160; ⇒dydx=1tan x.( ^2x) =cos xsin x.1cos^2x ⇒dydx=22.1sin xcos x =2sin 2x=2 cosec 2x Hence, solved. ...

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Properties Derived from Trigonometric Identities

If y = log ...

Question

If $y = log (tan x),$ show that $\frac{d y}{d x} = 2 c o s e c 2 x$

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