help please! i think the pathagoream[sp*] theorem is used here but i don't know where.
This is not really an a problem about solve for x,because any makes it true! This is called an identity problem.Originally Posted by CONFUSED_ONE
You need to demonstrate.
By Pythagorean Identity you have that,
Thus, (watch those signs )
Thus, we have on Left Hand Side,
(Note I change the name of this thread for reasons explained above).