Question

Find the fourth roots of 256(cos 280° + i sin 280°).

Answer 1

please help

Answer 2

take the real fourth root of 256, and divide each angle by 4

Answer 3

the real fourth root of 256 is 4
280 divided by 4 is 70

Answer 4

first answer is \[4(\cos(70)+i\sin(70))\]

Answer 5

for the next one, since 360 divded by 4 is 90, add 90 to 70
then repeat

Answer 6

pretty easy right?

Answer 7

yup thanks

Answer 8

yw