If 0 < x < pi and cosx + sinx = 1/2 the...

If ` 0 < x < pi` and `cosx + sinx = 1/2` then ` tanx =`

`(4-sqrt(7))/(3)`

`(4+sqrt(7))/(3)`

`(-(4+sqrt(7)))/(3)`

`(-4+sqrt(7))/(3)`

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The correct Answer is:

C, D

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