+0  
 
0
358
1
avatar

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

 Jul 25, 2021
 #1
avatar+37159 
+2

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

1 Online Users