1310-Notes-Sec-24 - Math 1310 Section 2.4 An Introduction...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Math 1310 Class Notes – Section 2.4, Page 1 of 6 Math 1310 Section 2.4 An Introduction to Complex Numbers A complex number is a number that can be written in the form bi a + where a and b are real numbers and . 1 2 - = i We call the number a the real part and we call the number b the imaginary part. If a = 0, the complex number is called a pure imaginary number. Any real number can be written as a complex number with b = 0. First, you’ll need to be able to classify numbers as real, complex or both. Example 1: Identify each of these numbers as real, complex or both: a. i 2 4 - b. 7 c. 36 - d. 5 Identify the real part and the imaginary part Example 2: Write in the form bi a + and state the real part and the imaginary part. a. 2 7 4 i + b. 9 5 - - c. 12
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Math 1310 Class Notes – Section 2.4, Page 2 of 6 Next, you’ll need to be able to find various powers of i . You’ll need to know these 4 powers: i 1 1 * 1 * * 1 * 1 2 2 4 2 3 2 = - - = = - = - = = - = i i i i i i i i i
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 6

1310-Notes-Sec-24 - Math 1310 Section 2.4 An Introduction...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online