Until yol Homework Assignment7F17 Save Score 0 of 1 pt 70f 1

Until yol Homework: Assignment-#7-F17 Save Score: 0 of 1 pt 70f 15 (9 complete) Hw Score: 4022%,603 of 15 pts ame 6.2.29 Question Help * ue Use identities to wite the equation in terms of the single angle 9 Then solve the equation for 0se

Solution

cos 2 theta=-2 cos ²theta

2cos²theta -1=-2cos²theta

4cos²theta=1

cos²theta=1/4

cos theta=+-1/2

theta= pi/3, 2pi/3, 4pi/3, 5pi/3