Friday

February 27, 2015

February 27, 2015

Posted by **Anon** on Friday, January 20, 2012 at 7:05pm.

- Precalculus -
**Damon**, Friday, January 20, 2012 at 7:19pm2 e^i(-30/3) = 2 cis -10

2 e^i(-30/3 +360/3)= 2 cis 110

2 e^i(-30/3 -360/3) = 2 cis -130

- Precalculus -
**Anon**, Friday, January 20, 2012 at 7:22pmThis is probably silly, but where is the 2 in the beginning of all of those from?

- Precalculus -
**Damon**, Friday, January 20, 2012 at 7:23pm2*2*2 = 8

- Precalculus -
**Anon**, Friday, January 20, 2012 at 7:24pmOhmygoodness. Hhaha. Thanks!

**Answer this Question**

**Related Questions**

precalculus - express the roots of unity in standard form a+bi. 1.) cube roots ...

equation complex number - z^4 + 81 = 0 (solve) change it to polar, then take ...

Math - Roots Ok, what about roots? Roots of polynomials? Square roots? Cube ...

PRECALCULUS - find the cube roots of the complex number. 27((cos(11pi/6)) + i(...

Precalculus - "Show that x^6 - 7x^3 - 8 = 0 has a quadratic form. Then find the ...

PRECALCULUS - 1.) determine two pairs of polar coordinates for the point (-...

precalc - express the roots of unity in standard form a+bi. 1.) cube roots of ...

maths - If 5x4-14x³+18x²+40x+16=(x²-4x+8)(ax²+bc+c) find a,b and c and hence ...

Pre-cal - The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the ...

Precal - The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the ...