Question

What is the multiplicative identity of the complex number –3 + 5i?
a. 0
b. 1
c. –3 + 5i
d. 3 – 5i

Answer 1

b? i think

Answer 2

thanks boo <3

Answer 3

That reasoning lol.

Answer 4

lets call the multiplicative identity a
then it must be that
(–3 + 5i)a=a(–3 + 5i)=(–3 + 5i)

Answer 5

so d?

Answer 6

(3 – 5i)(3 – 5i)=9-30i-25=-16-30i

Answer 7

what number when you multiply another number by it you get that other number back?
6x=6
what is x?

Answer 8

1

Answer 9

correct

Answer 10

what is the additive identity?
a+? = a