Mathematics, 28.04.2021 18:40 therealdest
1. Why would knowing the Pythagorean identity sin2x + cos²x = 1 and the sum
identities allow you to prove all the other identities you have seen in this
lesson?
Answers: 3
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1. Why would knowing the Pythagorean identity sin2x + cos²x = 1 and the sum
identities allow you...
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