Use the relationship between the since and cosine functions to fill in each blank.
1 answer:
Answer:
sin 60° = cos<u> 30°
</u>
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°
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