Question

1. which is the correct form of a complex number? (a + bi) (i^{2}) (\frac{a}{bi}) (abi)

Explanation:

A complex number is typically written in the form $a + bi$, where $a$ and $b$ are real - numbers and $i$ is the imaginary unit with $i^2=- 1$. The other options do not represent the standard form of a complex number. $i^2=-1$ is a value of $i$ squared, $\frac{a}{bi}$ is a quotient involving the imaginary unit, and $abi$ is a product involving the imaginary unit, none of which are the standard form.

Answer:

A. $(a + bi)$