Question

Study the work shown to find the exact solutions of

this trigonometric equation.


Select all that are solutions of the equation over
the specified domain.

Answer 1

A and d

Explanation:

Edge:)

Answer 2

first and fourth options

x = pi/6

x= 11pi/6

Explanation:

cos(30 degrees) = sqrt(3)/2

as pi stands for a half circle of 180 degrees

30 degrees = pi/6

cos(30) = cos(-30) = cos (330) =

cos(pi/6) = cos(-pi/6) = cos(11×pi/6)