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If sintheta1+sintheta2+sintheta3, then c...

If `sintheta_1+sintheta_2+sintheta_3,` then `costheta_1+costheta_2+costheta_3` is equal to 3 (b) 2 (c) 1 (d) 0

A

3

B

2

C

1

D

0

Text Solution

Verified by Experts

The correct Answer is:
D
The given relation is satisfied only when
`sintheta_1=sintheta_2=sintheta_3=1`
`rArrcostheta_1=costheta_2=costheta_3=0`
`rArrcostheta_1+costheta_2+costheta_3=0`
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CENGAGE-TRIGONOMETRIC FUNCTIONS -Exercise (Single)
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