On the left side I get 1/((2^1/2)-1) while on the right I get (2(2^1/2)+2)/2.

If they are somehow the same thing...I'll feel really stupid. Otherwise, I can't get this. I've tried about 4 times.

T.I.A.

- Thread starter q_fruit
- Start date

On the left side I get 1/((2^1/2)-1) while on the right I get (2(2^1/2)+2)/2.

If they are somehow the same thing...I'll feel really stupid. Otherwise, I can't get this. I've tried about 4 times.

T.I.A.

- Joined
- Apr 12, 2005

- Messages
- 10,076

Showing it for pi/4

See above

Proving it for all values in the Domain?

Multiply the left-hand side numerator and denominator separately by (1+cos(x) and see what pops out.