Question: Defn: Given a complex number z = ? + ?i , its complex conjugate is the complex number z = ? - ?i . 8.

Defn: Given a complex number z = ? + ?i , its complex conjugate is the complex number z = ? - ?i . 8. State the complex conjugate of each of the following. Then, multiply the number by its complex conjugate. a. 7+2i complex conjugate: Z . 2 = b. -3+i complex conjugate: Z . Z = c. What is the result when you multiply a complex number by its conjugate? 9. Review: rationalize each of the following. a. b. 3 /2 15 C. Z- NT 10. Write the following in the form ? + ?i . Recall that i = V-1 , so you can rationalize the denominator just like you did in the previous problem. a. -1+5i 3+i b. 1+5i C. 6+7i 3 - 4i

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