Algebra 2 Imaginary Numbers

Front

What is an imaginary number?

Back

An imaginary number is a number that can be written as a real number multiplied by the imaginary unit 'i', where i is defined as the square root of -1.

Front

What letter represents an imaginary number?

Back

i

Front

What does i^2 equal?

Back

-1

Front

Simplify √-1.

Back

i

Front

Simplify √-25.

Back

5i

Front

What is the value of i^3?

Back

-i

Front

What is the value of i^4?

Back

1

Front

Simplify 3√-81.

Back

27i

Front

What is the relationship between real numbers and imaginary numbers?

Back

Real numbers can be represented on a number line, while imaginary numbers are represented on a perpendicular axis, forming the complex plane.

Front

What is a complex number?

Back

A complex number is a number that has a real part and an imaginary part, expressed in the form a + bi, where a is the real part and b is the imaginary part.