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Mathematics, 21.10.2020 14:01, naenae6775
Use a cofunction identity to rewrite cos(120° − (30° + a)).
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Mathematics, 22.06.2019 01:00, jazzytazzyyy
Use mathematical induction to prove the statement is true for all positive integers n, or show why it is false. 1^2 + 4^2 + 7^2 + + (3n - 2)^2 = [n(6n^2-3n-1)/2]
Answers: 1
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Use a cofunction identity to rewrite cos(120° − (30° + a))....
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