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Solve each. Please show work Use the half-angle identities to find the exact value of each. 9) sin 2550 10) cos 67.5 Find the exact

Solve each. Please show work

Use the half-angle identities to find the exact value of each. 9) sin 2550 10) cos 67.5 Find the exact value of each. 11) tan 0 = -- 15 - where 90 5 0

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