Find the cube roots of 8. Write the answer in a + bi form.

z = 2, -1 + sqrt(3)i, -1 + sqrt(3)i

Step-by-step explanation:

z³ = 8[cos(0) + isin(0)]

z = 8^⅓ = 2

z = {8[cos(2pi) + isin(2pi)]}^⅓

z = 2[cos(2pi/3) + isin(2pi/3)]

z = -1 + sqrt(3)i

z = {8[cos(4pi) + isin(4pi)]}^⅓

z = 2[cos(4pi/3) + isin(4pi/3)]

z = -1 - sqrt(3)i

the answer to this question is yes

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer