Question

Sin (B)= 0.9761 cos(c)= 0.7850

Answer 1

1. sin (B)= 0.9761

B = sin^-1 ( 0.9761 ) = 77.45 degrees



2. cos(C)= 0.7850​

C = cos ^-1 ( 0.7850 ) = 38.28 degrees