Answer:I think over 3.
Step-by-step explanation:
open bracket pi over 3 comma 2 times pi over 3 comma 4 times pi over 3 comma 5 times pi over 3 close bracket
open bracket pi over 3 comma 5 times pi over 3 close bracket.
The solution of the trigonometric function will be π/3, 2π/3, 4π/3, and 5π/3. Then the correct option is C.
The connection between the lengths and angles of a triangular shape is the subject of trigonometry.
The trigonometric equation is given below.
1/cos θ = 4 cos θ
The interval of the cos θ is [0, 2π).
Simplify the trigonometric equation, then the equation will be
cos² θ = 1/4
Taking square root on both side, then the equation will be
cos θ = ±1/2
Taking cosine inverse, then the equation will be
θ = cos ⁻¹(1/2)
θ = π/3, 2π/3, 4π/3, 5π/3
The solution of the trigonometric function will be π/3, 2π/3, 4π/3, and 5π/3.
Then the correct option is C.
More about the trigonometry link is given below.
https://brainly.com/question/22698523
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