Question

7 + 5i, find modulus and Amplitude. ​

Answer 1

Answer:

Here's your solution , Bro,,

Let z = 7 + 5i, x = 7 , y = 5

Modulus of z = √(x² + y²)

= √(7² + 5²)

= √(49 + 25)

= √( 74)

Amplitude of z = tan^(-1) ( y/x)

= tan^(-1) (5/7)