# De Moivre's Theorem : Write a cis expression in standard complex form (a+bi)

Not what you're looking for? Search our solutions OR ask your own Custom question.

Use Demoivre's theorem to write [3 cis(pi/2)]squared in the form a+bi without trigonometric functions.

Find the real and complex solution of the equation Xsquared - 8 = 0

Find the angle between the two vectors (5,2) and (-2,5)

Â© BrainMass Inc. brainmass.com March 4, 2021, 7:42 pm ad1c9bdddfhttps://brainmass.com/math/complex-analysis/write-cis-expression-standard-complex-form-117571

#### Solution Preview

Use Demoivre's theorem to write [3cis(pie/2)]squared in the form a+bi without trigonometric functions.

The question is unclear. I assume your question is

Use Demoivre's theorem to write [3cos(pie/2)]squared in the form a+bi without ...

#### Solution Summary

A cis expression is written in standard complex form (a+bi). The angle between two vectors with points are determined.

$2.49