SAT Math: Complex numbers!

This video is about complex numbers! An additional topic on the SAT that you should know!

[cenourinha]

Hi guy, than, i learning the Sat alone, i download a proof and Begin the study she, but i don't know study the proof ;-; never had study one, than i don't know, i must study she How? Sorry, Begin the study does 1 month, of zero, and now, i can read many stuffs, for example the proof what download, but i don't know how study ;-;