Mathematics, 05.05.2020 15:59 mervesena01

Assume that 0 < x < pi/2 and 0 < y < pi/2. find the exact value of cos(x - y) if cos x = 3/5 and cos y = 4/5

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Assume that 0 < x < pi/2 and 0 < y < pi/2. find the exact value of cos(x - y) if cos x =...

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