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The least value of the function phi(x)...

The least value of the function
`phi(x)=overset(x)underset(5pi//4)int (3sin t+4 cos t)dt`
on the integral `[5pi//4,4pi//3]`, is

A

`3//2 - sqrt(3) //2`

B

`(5-3 sqrt(3))/( 2)`

C

`(7-4 sqrt3)/( 2)`

D

`(9-4 sqrt(3) )/( 2)`

Text Solution

Verified by Experts

The correct Answer is:
D
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