- #1
Veronica_Oles
- 142
- 3
Homework Statement
2sin2θ - 1 = sin2θ - cos2θ
Homework Equations
The Attempt at a Solution
I am unsure of how to prove these.
So far all I have is
Left side= 2sin2θ - 1
=sin2sin2-1
And I know that right side is equal to 1.
But otherwise not sure where to go from there.