Question

Compute the modulus and argument of each complex number.

a) -5i

b) sqrt 10(cos(5pi/7) + i sin (5pi/7))

Answer 1

I got the modulus.
What's the argument?

Answer 2

a) modulus 5,arg \[-0.5\pi\]
b) modulus \[\sqrt{10}\],arg \[5\pi/7\]

Answer 3

Thanks :)

Answer 4

u r wlcm :)