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The least value of 4sec^2x+25cosec^2x is...

The least value of `4sec^2x+25cosec^2x` is `....` and is obtained at x = `....`

A

`49,tan^(-1)sqrt(5/2)`

B

`32,tan^(-1)sqrt(5/2)`

C

`44,tan^(-1)sqrt(2/5)`

D

`44,tan^(-1)sqrt(5/2)`

Text Solution

Verified by Experts

The correct Answer is:
A
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