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If cos^(2)x+sinx+1=0, then the value of ...

If `cos^(2)x+sinx+1=0`, then the value of x lies in the interval

A

`((pi)/(4), (3pi)/(4))`

B

`((pi)/(4), (5pi)/(4))`

C

`((5pi)/(4), (7pi)/(4))`

D

`(3pi)/(4), (5pi)/(4)`

Text Solution

Verified by Experts

The correct Answer is:
C
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