Question

Sec(θ) = √2 give your answers in degrees (0° ≤ θ < 360°) and in radians (0 ≤ θ < 2π)

Answer 1

sec theta = 1 / cos theta  = 1 / sqrt2

theta = 45, 315 degrees

= pi * 45 / 180  =  0.25pi radians and  1.75pi radians