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यदि theta = 120^(@) तब...

यदि `theta = 120^(@)` तब

A

`sin theta = (sqrt(3))/(2)`

B

`cos theta =(1)/(2)`

C

`cot theta = (1)/(2)`

D

` tan theta = sqrt(3)`

लिखित उत्तर

Verified by Experts

The correct Answer is:
A
`sin (120^(@)) = sin (1 80^(@) - 60^(@)) = sin 60^(@) = ( sqrt(3))/( 2)`
` cos 120^(@) = - (1)/( 2)`
`tan 120^(@) = - sqrt(3)`
`cot 120^(@) = - (1)/(sqrt(3))`
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