Question

Let z = 11 (cos(1) + i sin (1) and w=7(cos(1) + i sin (1)

What is zw?
A: 11/7(cos(pi/6) + i sin (pi/6)
B: 77(cos(pi/6)+ i sin (pi/6)
C:12(cos(pi/12) + i sin ( pi/12 )
D: 77 (cos(pi/12) + i sin (pi/12)

Answer 1

i think it would be b. not positive thought