Hello, peekaboos!
1) Prove: .
The right side is: .
Multiply by
Multiply by
. .
I'm having troubles proving some trig identities. Any help is appreciated.
Question 1:
1 - sin2x / cos2x = 1 - tanx / 1 + tanx
Ignore question 2, I figured it out.
Question 2:
1 + sin2x / cosx + sinx = cos2x / cosx - sinx