laysav06 laysav06

04-03-2022
Mathematics

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write sin81 in terms of cosine

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tejadamay123 tejadamay123

04-03-2022

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)

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