Question

Would the conjugate of a complex number with 2 as the real part and 7 as the imaginary part be -2-7i or 2-7i

Answer 1

just replace the + sign by -

Answer 2

the conjugate of a + bi is a - bi

Answer 3

You have the complex number 2+7i to start with. To get the conjugate you just change the sign in front of the imaginary part.

Answer 4

So 2-7i

Answer 5

Yeah, and it is not -2-7i because you don't change the sign in front of the real part.

Answer 6

yes