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Find the value of 1 cos(29pi//3)...

Find the value of `1 cos(29pi//3)`

A

1

B

0

C

`sqrt3/2`

D

`1//2`

Text Solution

Verified by Experts

The correct Answer is:
D
`cos((29pi)/3) =cos[((27+2)pi)/3] =cos (9pi + (2pi)/3)`
` = -cos (2pi)/3 = -cos (pi/2 + pi/6) = sin pi/6 =1/2`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-TRIGONOMETRIC FUNCTIONS -EXERCISE 1 Trigonomertric Ratio of Allied Angle
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