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In ABC , cos B = 3/25 and angle A is 90 degrees. What is cos C?

 Jul 25, 2021
 #1
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Cos C will equal Sin B

Find sin b

(3/25)2 + sinb 2 = 1

9/625 + sin^2 = 1

sin^2 = 616/625

sin b = cos c = sqrt(616)/25    simplify as needed.....

 Jul 25, 2021

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