Explanation:
Answer: Last option.
Explanation:
Real numbers are defined as those numbers that can be found on the number line.
By definition Pure imaginary numbers have no real part.
When the real part is zero we often will call the complex number a purely imaginary number
By definition, Complex numbers have the following form:
a + bia+bi
Where "a" and "b" are real numbers and "i" is the the imaginary unit (Remember that i=\sqrt{-1}i=
−1
)
Based on the explained before, and given the following number:
3-719i3−719i
You can conclude that it is Complex number, because it has the form a + bia+bi