Question

3 sin^2A = 2+1/4,find A​

Answer 1

Answer:

A=30degree.

Step-by-step explanation:

3sin^2A=2+1/4

then

sin^2A=3/12

sin^2A=1/4

taking square root on both sides.

sinA=1/2

So Sin30=1/2

therefore A=30