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If sin theta=1/2 and cos theta=-(sqrt3)/...

If `sin theta=1/2` and `cos theta=-(sqrt3)/2`, then the general value of `theta` is:

A

`2npi+5pi/6`

B

`2npi+pi/4`

C

`2npi+pi/6`

D

`2npipmpi/4`

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