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Two parallel chords are drawn on the sam...

Two parallel chords are drawn on the same side of the centre of a circle of radius R. It is found that they subtend and angle of `theta` and `2theta` at the centre of the circle. The perpendicular distance between the chords is

A

`2Rsin. (3theta)/(2) sin. (theta)/(2)`

B

`(1-cos. (theta)/(2))(1+2 cos. (theta)/(2))R`

C

`(1+cos. (theta)/(2))(1-2cos. (theta)/(2))R`

D

`2 R sin. (3theta)/(4) sin. (theta)/(4)`

Text Solution

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The correct Answer is:
D
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ARIHANT MATHS-TRIGONOMETRIC FUNCTIONS AND IDENTITIES-Exercise (Questions Asked In Previous 13 Years Exam)
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  12. Let F(k)(x)=1/k (sin^(k)x+cos^(k)x), where x in R and k ge 1, then fin...

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  16. Let cos(alpha+beta)""=4/5 and let sin (alpha+beta)""=5/(13) where 0lt=...

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