Which of the following is NOT a solution to cos^2 x = 3sin^2 x?
30
60
150
210
330
well, just solve the equation:
1-sin^2 = 3sin^2
1 = 4sin^2
sin = ± 1/2
Looks like 60 is not a solution
30
60
150
210
330
1-sin^2 = 3sin^2
1 = 4sin^2
sin = ± 1/2
Looks like 60 is not a solution