If 0 lt x lt pi and cos x + sin x = 1/2,...

If `0 lt x lt pi` and `cos x + sin x = 1/2`, then tan x is

A

`(2- sqrt7)/(3)`

B

`-(4+ sqrt7)/(3)`

C

`-(1+ sqrt7)/(3)`

D

`-(2+ sqrt7)/(3)`

Verified by Experts

The correct Answer is:

B

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