Question

HELP ASAP!! 7. Solve

Answer 1

Answer:

x = 0°

Step-by-step explanation:

Given

- 2 + 6cosx = 8 - 4cosx ( add 4cosx to both sides )

- 2 + 10cosx = 8 ( add 2 to both sides )

10cosx = 10 ( divide both sides by 10 )

cosx = 1 , thus

x = $cos^{-1}$ (1) = 0° for 0° ≤ x ≤ 180°