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Multiply 3-2i by its conjugate....

Multiply `3-2i` by its conjugate.

A

`sqrt13`

B

`13`

C

`sqrt(-13)`

D

`-13`

Text Solution

Verified by Experts

The correct Answer is:
B
Given that, `3-2i`
The conjugate of` 3−2i` is `3+2i.`
Therefore, Required Product = `(3−2i)(3+2i)`
`=3^2-(2i)^2` [Using the formula `a^2-b^2=(a+b)(a-b)`]
...
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