Question

if sin2A=1/2 tan²45⁰ where A is an acute angle then A=​

Answer 1

Answer:

The answer is A=15°

Step-by-step explanation:

  sin2A=1/2 tan²45⁰

⇒ sin2A=1/2

⇒ 2A= sin^(-1) (1/2)

⇒ 2A= 30°

⇒ A=15° (∵A is an acute angle)