Question

i need to get to cos(x)/sin(x) - 1/cos(x) * 1/sin(x) - sin(x)/cos(x) and i am at ......cos(2x)cos(2)/sin(x)cos(x) + sin(2x)sin(2)/sin(x)cos(x) what would i do next?

Answer 1

that looks messy..haha
wait where is equal sign ?

Answer 2

oh i see...nevermind

Answer 3

seems to me those 2 expressions are not equal...thus it is impossible what you are trying to do

counterexample at x = pi/4