Question

find the modulus of 4i^7​

Answer 1

Answer:

Definition of Modulus of a Complex Number: Let z = x + iy where x and y are real and i = √-1. Then the non ... (vi) If z = -5 + 4i then |z| = √(−5)2+42 = √41. (vii) If z = 3 - √7i then |z| = √32+(−√7)2 =√9+7 = √16 = 4.