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The value of sin50^(@)-sin70^(@)+sin10^...

The value of `sin50^(@)-sin70^(@)+sin10^(@)` is

A

0

B

1

C

`(1)/(2)`

D

`(1)/(sqrt(2))`

Text Solution

Verified by Experts

The correct Answer is:
A
`sin50^(@)+sin10^(@)-sin70^(@)=2sin30^(@)cos20^(@)-cos20^(@)`
`=cos20^(@)(2xx(1)/(2)-1)=0`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-FACTORIZATION FORMULAE -EXERCISE 2
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