Question

Any number in the form of a ± bi, where a and b are real numbers and b ≠ 0 is considered a pure imaginary number. (1 point)
True or false

Answer 1

@agent0smith

Answer 2

True

Answer 3

Truuuuu #2chainz

Answer 4

hahah whattt???

Answer 5

False. A PURE imaginary number is a number that can be written as the product of a real number and the sqrt(-1).

Example: sqrt(-7) is a pure imaginary number because it can be written as sqrt(7) x sqrt(-1) = i sqrt(7)

But 3+2i is not pure imaginary.

Answer 6

Ok, are you 100% positive?

Answer 7

@Easyaspi314

Answer 8

I wouldn't post anything if I am not 100% certain.

Answer 9

ok i believe you, just checking. thank you! (:

Answer 10

3+4i is NOT the product of a real number and the sqrt(-1).
Hence, 3+4i is not a pure imaginary number.

It is a complex number in a+bi form, but not pure imaginary.