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Given 15cotA=8, find sin A and sec A....

Given `15cotA=8`, find sin A and sec A.

A

`sinA=15/17, secA=17/8`

B

`sinA=13/17, secA=11/8`

C

`sinA=15/17, secA=19/8`

D

`sinA=13/17, secA=17/8`

Text Solution

Verified by Experts

The correct Answer is:
A
`cot A= ("side adjacent A") / ("side opposite A" )= (AB)/(BC)`
It is given that `15 cot A = 8`
`⇒ (AB)/(BC) = 8/15`
Let AB be 8k. Therefore, BC will be 15 k where k is a positive integer. ...
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