Question

Which trigonometric functions are equivalent to sin (theta)? Select all that apply.(2 correct answers)

Answer 1

Answer:

sin(θ) = sin(θ + 2π) = -sin(-θ)

b and d

This can be shown by substituting a value for θ

sin(π ÷ 3) = 1/2

sin(π ÷ 3 + 2π) = 1/2

-sin(π ÷ 3) = -1/2

-sin(-π ÷ 3) = 1/2

sin(π ÷ 3 + π ÷ 2) = √3/2