Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • If cos9A = sin A and 9A < 90°, then the value of tan 5A is

If cos9A = sin A and 9A < 90°, then the value of tan 5A is

Answers (1)

Given: cos 9A = sin A

sin (90 - 9A) = sin A

(90° - 9A) = A

A = 9°

Now

tan 5A = tan 5 (9°)

= tan 45°

= 1

Posted by

Ravindra Pindel

View full answer

Similar Questions

Latest Question