Question: Solve using the power reducing identities. Find cos' u; u = 55' 1.3224 O 0.5924 O 0.4339 0.3290 O 1 14. Choose the best answer.

Solve using the power reducing identities. Find cos' u; u = 55' 1.3224 O 0.5924 O 0.4339 0.3290 O 1 14. Choose the best answer. Find the measure to the nearest tenth of the unknown angle given a = 8, b = 13, c = 20 . Use a calculator. Find m.LA O ~ 13.8' O ~ 38.7' O ~ 97.9 O ~ 45.5 O ~ 137.9 00:49:08

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