Solve for θ, given 0≤ θ≤ 2pi a) cos θ= -0.5332 b) csc θ= 3.9397

Answer 1

a) either 122 or 238 degrees

122.222 degrees or 237.778 degrees

180-57.778 or 180+57.778 degrees

b) either 15 or 165 degrees

14.704056 or

180 - 14.704056 = 165.295944 degrees, about 165 degrees

use trig functions on a calculator or

you could use double and half angle formulas