Simplifying Complex Numbers

Front

What is the square root of -25?

Back

5i

Front

What is the value of i^2?

Back

-1 (negative one)

Front

What is the square root of -50?

Back

5i√2

Front

What is the imaginary unit 'i'?

Back

A number, defined as √-1, NOT a variable.

Front

What is the square root of -12?

Back

2i√3

Front

How do you express the square root of a negative number?

Back

Use the imaginary unit 'i' to express it as i times the square root of the positive part.

Front

What is the definition of a complex number?

Back

A number that can be expressed in the form a + bi, where a and b are real numbers.

Front

What is the real part of the complex number 3 + 4i?

Back

3

Front

What is the imaginary part of the complex number 3 + 4i?

Back

4

Front

How do you add two complex numbers?

Back

Add their real parts and their imaginary parts separately.