Find x if cos x =-1//2. if X lies in II...

Find x if `cos x =-1//2`. if X lies in III Quad.

A

` ( 3pi)/(2)`

B

`( 2pi )/( 3)`

C

`( 4pi )/( 3)`

D

`( 5pi)/( 2)`

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The correct Answer is:

B

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