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if y=log(tan x) the value of dy/dx =
….......................................................

ajsajaj , 9 Years ago
Grade 11
anser 1 Answers
Jigar Marvaniya

Last Activity: 9 Years ago

y=log(tan x)
dy/dx = d(log(tanx))/dx
         = (1/tanx) *d(sinx/cosx)/dx
         = (cosx/sinx) * (cosx/-sinx)
         = – (cosx*cosx) / (sinx*sinx)
         = – cos2x/sin2x
 
Hope it helped
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