Question

Find the product of the complex number and its conjugate.
1 + 2i

Answer 1

conjugate of complex number : write -i in place of i

Answer 2

thus conjugate of 1+2i is 1-2i

Answer 3

well my anserw can only be this

Answer 4

1 - 4i

-3

5

1 + 4i

Answer 5

then u have to find the product of complex number i.e.
(1+2i)(1-2i)=5

Answer 6

ohh i didn't know there was another step

Answer 7

ya.... best u read the question carefully before u post it..