12.4k views
5 votes
Solve the following equation over the interval (0°, 360°). List all possible answers.

4cos²x - 3=0

User Aoak
by
7.1k points

1 Answer

11 votes

Answer:

Hi...

Cosx^2=3/4

Cosx=radical 3/2

X=30 degree

User Sandhurst
by
8.2k points