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cos 510^@cos330^@+sin 390^@cos120^@=...

`cos 510^@cos330^@+sin 390^@cos120^@`=

A

2

B

(-1)

C

0

D

`1/sqrt2`

Text Solution

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The correct Answer is:
B
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PATHFINDER-TRIGONOMETRIC RATIOS AND IDENTITIES-QUESTION BANK
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