Basic Functions and Their Graphs - Arizona State University

Basic Functions and Their Graphs - Arizona State University

Complex Numbers Section 2.1 Objectives Rewrite the square root of a negative number as a complex number. Write the complex conjugate of a

complex number. Add, subtract, multiply, and divide two complex numbers. Solve a quadratic equation with complex solutions. Vocabulary

complex number complex conjugate Rewrite the following square root so that there is no longer a negative sign under the square root

symbol. 4 Rewrite the following square root so that there is no longer a negative sign

under the square root symbol. 36 Rewrite the following square root so that there is no longer a negative sign

under the square root symbol. 5 Evaluate the expression 3

2i 6 4i Evaluate the expression 5

5i 8 2i Multiply the following two numbers together.

2 i 3 7i Find the complex conjugate of each of the following: 3 2i 2 i

5i 1 i 5 Multiply the following two

numbers together. 3 2i 3 2i Evaluate the expression 3 2i 4 5i

Solve the equation: 2 x 9 0 Solve the equation:

2 x 4x 5 0 Solve the equation: 2

2x 3 2x

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