Question

:
Example 4 : In a right triangle ABC, right-angled at B,
if tan A= 1, then verify that
2 sin A cos A = 1.
​

Answer 1

Answer:

given- a right angled triangle

tan= 2

To find- 2 sin A cos A= 1

Solution- 2 sin Acos A

= 2 (1/root2)(1/root2)

= 1

hence verified