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The value of cos12^(@)+cos84^(@)+cos156^...

The value of `cos12^(@)+cos84^(@)+cos156^(@)+cos132^(@)` is

A

`(1)/(2)`

B

1

C

`-(1)/(2)`

D

`(1)/(8)`

Text Solution

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The correct Answer is:
C
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KUMAR PRAKASHAN-TRIGONOMETRIC FUNCTIONS -SOLUTION OF NCERT EXEMPLAR PROBLEMS (OBJECTIVE TYPE QUESTIONS)
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