sinA = 12/13 হলে tanA = ?
Solution
Correct Answer: Option B
এখানে, sinA = 12/13
cos2A = 1-sin2A
= 1- (12/13)2
= 1 - (144/169)
= (169-144)/169
= 25/169
∴ cosA= 5/13
আবার, tanA = sinA/cosA
= (12/13) × (13/5)
= 12/5
Practice More Questions on Our App!
Download our app for free and access thousands of MCQ questions with detailed solutions