Question

Use the relationship between the since and cosine functions to fill in each blank.

6. sin 60° = cos___

Answer 1

Answer:

sin 60° = cos 30°

Step-by-step explanation:

You need to use the trigonometric ratios which states that:

sin α = cos (90° - α)

sin 60° = cos (90°-60°)

sin 60° = cos 30°