Question

How can i find the product of the complex number and its conjugate. 1 + 2i

Answer 1

sorry... i mean 1+2*i??

Answer 2

The question says "1+2i"

Answer 3

mmmmm... lets see....

Answer 4

\((a+bi)(a-bi) = a^2 + b^2\)

Answer 5

conjugate of \(1+2i\) is \(1-2i\)

Answer 6

product wud be :

\((1+2i)(1-2i) = 1^2 + 2^2 = 1 + 4 = 5\)

Answer 7

oohhh i get it. but i dont know where she went???
well, thanks!!

Answer 8

np :)

Answer 9

Still here!

Answer 10

Thanks!

Answer 11

thank ninjastrike :)

Answer 12

your welcome