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Let f (x) (cos ^(2) x)/(1+ cos +cos ^(2)...

Let `f (x) (cos ^(2) x)/(1+ cos +cos ^(2)x )and g (x) lamda tan x+1(1-lamda) sin x-x, ` where `lamda in R and x in [0, pi//2].`
`g '(x)` equals

A

`[1,oo)`

B

`[0,oo)`

C

`[(1)/(2), oo)`

D

`[(1)/(3), oo)`

Text Solution

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The correct Answer is:
D
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VK JAISWAL ENGLISH-CONTINUITY, DIFFERENTIABILITY AND DIFFERENTIATION-EXERCISE (COMPREHENSION TYPE PROBLEMS)
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  5. Let f :R to R be a continous and differentiable function such that f (...

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  7. Let f :R to R be a continous and differentiable function such that f (...

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