Use a graphing calculator to solve the equation -3cost=1 in the interval from.0<theta<2pi Round to the nearest hundredth.

Answer 1

cost = -1/3

Quad II and III

Θ = ± 1.91

Answer 2

use a graphing calculator to solve the equation in the interval from 0 to 2pi round to the nearest hundredth 4 cos(t)=3

Answer 3

$t = 0.87, 5.5$ (rounded to the nearest hundredth and in radians)