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Yuliya22 [10]
3 years ago
15

Use the relationship between the sine and cosine functions To fill in each blank

Mathematics
1 answer:
Vesnalui [34]3 years ago
8 0

Answer:

sin 70° = cos (90° - 70°)

Step-by-step explanation:

You need to use the trigonometric ratios which states that:

sin α = cos (90° - α)

sin 70° = cos (90° - 70°)

sin 70° = cos 20°

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