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Let A and B denote the statements A:cos ...

Let A and B denote the statements A:`cos alpha+cos beta+cos gamma=0`,B:`sin alpha+sin beta+sin gamma=0` if `cos(beta-alpha)+cos(gamma-alpha)+cos(alpha-beta)=(-3/2)` then

A

A is true and B is false

B

A is false and B is true

C

both A and B are trure

D

both A and B are false

Text Solution

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