Question

solve cos 3 theta = 1 (0 12 years ago

Answer 1

Inverse cos on both sides, then divide by 3 (for all answers; everything on the right side of the equation)

Answer 2

would you like to desmotrate

Answer 3

use a calculator, or think of the unit circle. When will cos = 1? If using the unit circle, where will the x coordinate be 1? There's 2 in your interval.

Answer 4

That will give you what 3theta equals. So then you divide by 3

Answer 5

so the answer would be 0 and 2pi/3

Answer 6

Yep :D

Answer 7

Thank you so much