Question

the modulus of 5 + 4i is?​

Answer 1

SOLUTION

TO DETERMINE

The modulus of 5 + 4i

EVALUATION

We know that for a complex number z = a + ib , the modulus of z is denoted by | z | and defined as

$\sf \: |z| = \sqrt{ {a}^{2} + {b}^{2} }$

Here the given number is 5 + 4i

So the required modulus

$\sf \: = \sqrt{ {5}^{2} + {4}^{2} }$

$\sf \: = \sqrt{ 25 + 16 }$

$\sf \: = \sqrt{ 41 }$

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ show that sinix=isinhx

https://brainly.in/question/11810908

2. if a+ib/c+id is purely real complex number then prove that ad=bc

https://brainly.in/question/25744720