If cos a = 0.791 and cos 8 = 0.517 with both angles' terminal rays in...

Question

Question

If cos a = 0.791 and cos 8 = 0.517 with both angles terminal rays in Quadrant-I, find the values of sin(a + b) = -9933 (b) s

Answer 1

Answer #1

- Cosa = 0.791 , cosß = 0.517 Sina= 5 1 - Copa - J.-10.79 j2 = 0.612 sin p= 5e-cos?ß = 51-10.51732 = 0.839 (a) sin(a+B) = sin

Answer 2

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