Express tan2(cos−11x) without trig functions and in terms of x.PS: Please do not give me a lump of clumsy infinite series.I will throw it into a cylindrical object with a lid. XD
=(1-1/x^2) x^2
Why no one have asked me what is that cylindrical object with a lid? It's a void rubbish bin xDDDD
WELL wrong one. Why would I have to reply to Guest #1 XD. I meant to make a new answer zone.
x^2 - 1.
LOL good job Guest #2
