Question

What is the complex conjugate of 12+12i?

Answer 1

The complex conjugate of a complex number is a number that has an equal real part and a complex part that is equal in magnitude but opposite in sign.

Start by breaking your number down into real and complex parts, then use the definition to get the pieces you need for the answer.

Answer 2

is it -12-12i

Answer 3

@twvogels

Answer 4

Almost.

We need the real part to be equal and only the complex part to have the opposite sign.

Answer 5

12-12i yes

Answer 6

correct

Answer 7

Yes!

Answer 8

thank u can u help me on a few more questions

Answer 9

sure

Answer 10

Sure. Make sure to post them separately though. It make it easier for people to find them.

Answer 11

Or we can do them here.

Answer 12

Ok hold on I'm looking now.

Answer 13

its posted

Answer 14

The FTAlg tells us that any one variable polynomial that's not a constant and has complex coefficients has at least one complex root. This works for real number coefficients too since they just have a complex part equal to zero.

Answer 15

Use the quadratic formula or factoring to get the roots. Hint: it's quadratic so there will be two of them.