Question

How do I calculate the cube roots of 8 in the formula a+bj

Answer 1

8 = 2*2*2

Answer 2

a + ib ------ 2 + 0i

Answer 3

use the following formula with n=3 and r=8
use k=0,1,2
\[\Large =r^{\frac{1}{n}}[\cos(\frac{\theta}{n}+\frac{2 \pi k}{n}+isin(\frac{\theta}{n}+\frac{2 \pi k}{n}]\]
where \[\theta =0\]

Answer 4

what ^

Answer 5

Thanks

Answer 6

@bmtana ,did u get it or still have doubts....we can help u better if u post the entire question....

Answer 7

Here is the question.....get the cube roots of 8 using the formula a+bj and give the main root is exponential form.

Answer 8

2^3 is the exponential form, and i believe yahoo had it right with his 2 + 0i for the formula a+bi

Answer 9

Thanks, that helped me a lot.