Question

the modulus of complex number 4 - 7 I will be

Answer 1

|Z|=root square of 4 +(-square of 7)
Then,root 16 + 48=root65

Answer 2

Answer:

The modulus of complex number 4 - 7i will be $\sqrt{65}$

Step-by-step explanation:

The modulus of the complex number is given by:

|z|=$\sqrt{Re(z)^{2}+Im(z)^{2}}$,

The given complex number is 4-7i, then the real part of the number is =4 and the imaginary part=-7,

then the modulus of 4-7i will be=|4-7i|=$\sqrt{(4)^{2}+(-7)^{2}}$

=$\sqrt{16+49}=\sqrt{65}$