cos(x) is a function, so you can't factor x out of it. The problem clearly mention the use of calculator. Draw the graph of y=x and y=cos(x) and then find their intersection points in the indicated interval.
Problem: With your calculator, solve for over .
Attempted Solution: My first guess was to factor out , but that would leave me with no cos value. Would that be permissible? Is not cosine value equal to cos 0? That's my only guess and I doubt it.
If anyone could help, I would greatly appreciate it.