Question

if Z=3-4i then IZI=​

Answer 1

GIVEN :

Z=3-4i

TO FIND :

IZI

SOLUTION :

=> IZI =√(3²+ 4²)

=> IZI =√(9+16)

=> IZI = √25

=> IZI = 5

ANSWER : 5

Answer 2

The value of |Z| is 5.

Given,

Z = 3 - 4i

To Find,

The value of |Z|.

Solution,

We know that, if Z = a - ib

                        then |Z| = √(a² + b²)

⇒ |Z| = √(3² + (-4)²)

        = √(9 + 16)

        = √25

        = ± 5

But, due to modulus,

|Z| = 5.

Hence, the value of |Z| is 5.

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