Question

Convert the polar representation of this complex number into its standard form:

Answer 1

Please Help!!!

Answer 2

HELP!!

Answer 3

\[z = 2\left(\cos \frac{7\pi}{6} + i\sin \frac{7\pi}{6}\right)\]
\[z = 2\cos \frac{7\pi}{6} + i2\sin \frac{7\pi}{6}\]

Answer 4

use ur calculator and evalueate cos7pi/6 and sin7pi/6

Answer 5

http://www.wolframalpha.com/input/?i=2*cos%287pi%2F6%29+%2B+i2sin%287pi%2F6%29

Answer 6

you can write it ias foolows...
\[z=2(\cos (\pi+\frac{ \pi }{ 6 })+\iota \sin (\pi+\frac{ \pi }{ 6 }))\]
now use sin(A+B)=sinAcosB+cosAsinB
and cos(A+B)=cosAcosB-sinAsinB
to evaluate and then use trig.fun.values table to find your answerr...

Answer 7

nice :)