Posted by **carolyn** on Friday, July 13, 2012 at 4:56pm.

De Moivre’s theorem states, “If z = r(cos u + i sin u), then zn = rn(cos nu + i sin nu).”

• Verify de Moivre’s theorem for n = 2.

a. Provide a correct proof that includes written justification for each step.

## Answer This Question

## Related Questions

- Pre-Calculus - Can someone please help me with this problem? De Moivre’s theorem...
- Math - How to simplify the expression using De Moivre's theorem? The question is...
- Trigonometry - Use De Moivre's Theorem to write the complex number in ...
- trig - Use De Moivre's theorem to simplify the expression. Write the answer in ...
- TRIG! - Posted by hayden on Monday, February 23, 2009 at 4:05pm. sin^6 x + cos^6...
- tigonometry - expres the following as sums and differences of sines or cosines ...
- Mathematics - Trigonometric Identities - Let y represent theta Prove: 1 + 1/tan^...
- algebra - Can someone please help me do this problem? That would be great! ...
- Precal - I do not understand how to do this problem ((sin^3 A + cos^3 A)/(sin A...
- trig - Reduce the following to the sine or cosine of one angle: (i) sin145*cos75...

More Related Questions