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This Question: 3 pts 4 of 10 (1 complete) Prove the identity 1 + cos 90 cos 38+ sin 9e sin 38 = 2 cos (38) Notice that the le
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Answer #1

XI = 0.5235 X = 5T = 706179 36 77 - 3.86514 X = 1= 5.7595 given that 1 + cos go of 30+ sin go sino = $cos (36) we know that a

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