5 - 2i

3 + 8i

for this problem i would like to know if i should mult. both the tope and the bottom by

3 + 8i.

also i already know that (i) to the second power is equal to -1. but how would you work it out?

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- August 18th 2010, 04:50 PMallsmilesmult. imaginary numbers
__5 - 2i__

3 + 8i

for this problem i would like to know if i should mult. both the tope and the bottom by

3 + 8i.

also i already know that (i) to the second power is equal to -1. but how would you work it out? - August 18th 2010, 05:04 PMskeeter
- August 18th 2010, 06:32 PMpencil09