Find the fourth roots of 256(cos 240° + i sin 240°). (will give brainliest answer/5 stars if correct answer within 30 min. of posting)

Solution:

we have been asked to find the fourth roots of 256(cos 240° + i sin 240°).

As we know that

So the given expression can be written as

Now the fourth root can be found as below

Hence the required fourth root is

the answer is a

step-by-step explanation:

i think the answer is b.

step-by-step explanation:

not 100% sure though.