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module 15 math

complexed #'s

√-216 written in terms of i? -√-1(6)(36) √-1 √6 √36 √36 √6 √-1 6i√6
Write in terms of i? 10√-216 10√-216 First factor -216 10√-1(6)(36) 10√-1√6√36 10√36 √-1√6 10*6i√6 60i√6
Multiply √144 * √-1 ? i^2 =-1 and i=-1 √144=12 √144*√-1 12 * i= 12i
Add: (6+5i)+(4-4i) The terms 6 and four are alike and the terms 5i and -4i are also like terms =10+i
Multiply: -10i * -5i ? Multiply as you would normally then remember that i^2 = -1 and simplify. -10i * -5i 50i^2= -50
√144 *√-1 Divide: √-72/-9 ? √144 *√-1 √-72/√-9 i√72/i√9 divide the i ‘s √72/√9 √72/9 √8=√4*√2= 2√2
Created by: fatmire