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Answer 9-14 Use the half-angle identities to find the exact value of each. 9) sin 2550 10) cos 67.50 Find the exact value of each.

Answer 9-14

Use the half-angle identities to find the exact value of each. 9) sin 2550 10) cos 67.50 Find the exact value of each. 11) tan 0 = 15 8 - where 90 5 0

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