Question

If sin A =  8/17 and A is acute, then cot A is equal to : (a)  15/8 (b)  15/17  (c)  8/15 (d)  17/8​

Answer 1

ans :-15/8

hope it help :)

Answer 2

Answer:

Correct option is

A

158

Given, cosA= 178

⇒cos2A+sin2A=1

⇒sin2A=1−cos2A

⇒sin2A=1−(178)2

⇒sin2A=1−28964

⇒sin2A=289289−64

⇒sinA=289225

⇒sinA=1715

Therefore, we know

cotA=sinAcosA

=1715178

=