Jessica tracks her progress on her reading assignments in the table below.

Factor the polynomial 8y^2 - 72 btw "^" means exponent

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Solve for x, y, and z. show all steps.