Question

Use DeMoivre's Theorem to write the complex number in trigonometric form.
(cosπ/4+isinπ/4)^3

Answer 1

Simply multiply each of the angles by 3 and remove the exponent 3.

Answer 2

So its (3cospi/12+isin/12)

Answer 3

3(cospi/12+isinpi/12)

Answer 4

No. What is (pi/4) * 3

Answer 5

\[\frac{\pi}{4}\times 3=\]

Answer 6

(pi/4) * 3 = (3 * pi)/4

Answer 7

yes..

Answer 8

Go ahead and substitute that value as the angles

Answer 9

Don't forget to remove the ^3 exponent after the last bracket.