Question

Please help me with the following:
Solve:
(5sec3x-2) (sec3x+1) =0 within [0,2Pi)

Answer 1

Solve: 5sec(3x) - 2 = 0

Answer 2

?? confused

Answer 3

Remember when yousolved quadratic equations?

x^2 - x - 2 = 0

Factor, if possible

(x-2)(x+1) = 0

If we are ringing any bells, here, we need to ask, "What did you do next to solve this quadratic equation?"

Answer 4

set each side = to 0 and solve