# Math Help - graphing techniques for level curves

1. ## graphing techniques for level curves

Hi, I am having trouble graphing two level curves:

1 = e^(-y) * tan (x)

1/2 = cos(x) * cos(y)

What is the best way to graph these? Should I be using calculus to find turning points and concavity?

2. ## clarity?

$y=-\ln(\cot x)$

$y=\arccos(\frac12\sec x)$

What is it exactly you are trying to do?