Question

Use the complex conjugate to find the absolute value of 8+12i

Answer 1

You can find the absolute value of 8 + 12i using this formula:
|a+bi| = square root of a^2 + b^2
|5+12i| = square root of 8^2 + 12^2 = 14.42

14.42 is the correct answer. I hope this is the answer you're looking for. Have a great day!

Answer 2

Answer: It's absolute value of 8+12i is 14.42.

Explanation

Since we have given that

`z=8+12i`

Since we have to use the complex conjugate,

As we know that,

`z\bar{z}=\mid z\mid^2`

So,

`z=8-12i\\\\\bar{z}=8-12i`

Now, we use it in the formula ,

`(8-12i)* (8-12i)=64+144=208`

so,

`\mid z\mid^2=208\\\\\mid z\mid=√(208)=14.42`

so, it's absolute value of 8+12i is 14.42.