How to prove the following equation:cos*2(180+x)+tan(x-180)sin(720-x)cosx=cos2x
I have tried solving it but I just can't get it right
I have tried solving it but I just can't get it right
Asked: 7 years ago
Seen: 537 times
Last updated: Apr 13 '17
What does
cos*2(180+x)
mean ?Let me guess:
bool(equ)
yieldsTrue
Well...
This is the half of the cake.