Question

Find A if 2co3A=1
plz say this answer ​

Answer 1

Answer:

Step-by-step explanation:

2cos3A=1

cos3A=1/2

cos solution:- 2npi+-theta

ans: 2npi+-pi/9

Answer 2

Answer:

2cosA=1.

CosA=1/2.

.: According to Trigonometry Table:

Cos 60°=1/2.

So, A=60°.

Step-by-step explanation:

HOPE THIS WILL HELP YOU:)