Question

how do i put -2i in trigonometric form?

Answer 1

@sammixboo @spidermanpowers @mathmath333

Answer 2

+2

Answer 3

i have the answer i just don't know how to do it

Answer 4

its 2[cos(-90)+isin(-90)}

Answer 5

how do i find r if there's no a?

Answer 6

@Book_Nerd_101 @Catlover5925 @nermaljean99

Answer 7

@magepker728 plz help

Answer 8

the form you want is r(costetha+ isintetha)

Answer 9

@magepker728 yes

Answer 10

ok then lets start by finding r.