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katrin2010 [14]
2 years ago
8

Write sin81 in terms of cosine

Mathematics
1 answer:
strojnjashka [21]2 years ago
7 0

Answer:

Since 81° is less than 90, we can express this in terms of a cofunction. sin(θ) = cos(90 - θ) sin(81) = cos(90 - 81) sin(81) = cos(9)

Step-by-step explanation:

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