Which is the correct cofunction identity for cos theta

a. csc(90° - theta)

b. sec(90° - theta)

c. sin(90° - theta)

d. cos(90° - theta)

e. tan(90° - theta)

C. sin(90° - θ)

Step-by-step explanation:

A trig function of an angle equals the cofunction of the angle's complement.

The cofunction of  cosine is sine, and the complement of θ is 90° - θ.

∴ cosθ = sin(90° - θ)

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step-by-step explanation: