Use a graph of the function to approximate the solutions of the equation on the interval [−2𝜋, 2𝜋]. (Enter your answers as a comma-separated list. Round your answers to three decimal places.)

Question

sec (x) = -2

x =

Answer 1

sec x = -sqrt(2) means cos x = -.5sqrt(2)

This means angles related to 45 degrees (pi/4).

Usually we think of the interval from 0 to 2pi where cos is negative in quadrants II and III.

This information should enable you to answer the question in the strange interval required.