write the expression in the form bi, where b is the real number
calculus - bobpursley, Thursday, October 29, 2009 at 6:28pm
what is 4i squared? 5i?
calculus - Reiny, Thursday, October 29, 2009 at 6:28pm
now you do the others the same way.
calculus - Collin, Friday, October 30, 2009 at 2:35pm
I think you can see it now. Just remember i=sqrt(-1). And don't forget your properties of sq-roots.