Asked by tej
Derivative of √ tan x is,
Answer: A. sin 2 x/ √ tan x B. cos 2 x/ 2 √ tan x C. sec 2 x D. None of these
Answer: A. sin 2 x/ √ tan x B. cos 2 x/ 2 √ tan x C. sec 2 x D. None of these
Answers
Answered by
Reiny
if y = √tanx = (tanx)^(1/2)
then
dy/dx = (1/2)(tanx)^(-1/2)(sec^2 x)
or
sec^2x/(2√tanx)
I don't see that answer in your choices
then
dy/dx = (1/2)(tanx)^(-1/2)(sec^2 x)
or
sec^2x/(2√tanx)
I don't see that answer in your choices
Answered by
drwls
You need to be more careful showing a ^ before exponents.
Hint: use the chain rule.
The correct answer is
(cosx)^-2/[2 sqrt(tanx)]
But that is none of the choices you have written down.
Hint: use the chain rule.
The correct answer is
(cosx)^-2/[2 sqrt(tanx)]
But that is none of the choices you have written down.
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