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Find the acute angle A such that sin 7A = cos 5A.

 Jul 4, 2022

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7A + 5A = 90 deg

12A =90

A = 7.5 deg.

 Jul 4, 2022
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 Jul 4, 2022
edited by CPhill  Jul 4, 2022
 #2
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Best Answer

7A + 5A = 90 deg

12A =90

A = 7.5 deg.

Guest Jul 4, 2022

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