12 Practice with Multiplication Page 278, #47-55 ALL
13 Division with Complex Numbers Just like with square roots, we do not want to have a complex number in the denominator of a fraction, or division problem. Example: 5 3+4iTo simplify this, we use the Complex Conjugate of the denominator.
14 The Complex Conjugateof any complex number (a+bi) is (a-bi). Examples: Complex Conjugate 7+4i 7-4i 12-3i 12+3i -9-2i -9+2i
15 5 3+4iMultiply by the complex conjugate of the denominator over itself