Question

In the number 7+3i

, what type of number is 3i
?
Responses

real
real - incorrect

irrational
irrational - no response given

rational
rational - no response given

imaginary
explain how you get the answer

Answer 1

[AI-generated answer — Bot GPT 3.5]

The number 3i is an imaginary number. It is formed by multiplying a real number (3) and the imaginary unit (i), where i is defined as the square root of -1. Imaginary numbers do not have a real part and are typically represented as bi, where b is a real number and i is the imaginary unit. In this case, since 3 is the real coefficient and i is the imaginary unit, the number 3i is imaginary.