Question

What values for theta(0
12 years ago

Answer 1

@sweetburger @Hero

Answer 2

Hint: Factor out cos(theta)

Answer 3

Think of your Double Angle Formulas you can substitute some values here

Answer 4

Okay, so how would I factor out cos (theta) ? Also I don't remember the Double Angle Formula.

Answer 5

But if you factored out cos(theta) you would have

cos(theta)(2sin(theta) + 1) = 0

Then you can use zero product property

cos(theta) = 0
2sin(theta) + 1 = 0

Answer 6

http://www.sosmath.com/trig/Trig5/trig5/trig5.html

Answer 7

Okay, thank you :)

Answer 8

You should be able to finish solving from there.