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Write the complex number in the form a + bi sqrt6(cos 315° + i sin 315°)
PLEASE HELP
 one year ago
 one year ago
Write the complex number in the form a + bi sqrt6(cos 315° + i sin 315°) PLEASE HELP
 one year ago
 one year ago

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bleck19Best ResponseYou've already chosen the best response.0
@jim_thompson5910 could you help with this last one :/ ? Im so sorry
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
what is the cosine of 315 degrees
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
what about the sine of 315 degrees
 one year ago

bleck19Best ResponseYou've already chosen the best response.0
1/sqrt2 @jim_thompson5910
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
or sqrt(2)/2
 one year ago

bleck19Best ResponseYou've already chosen the best response.0
sorry about that youre right ./.... typo @jim_thompson5910
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
so this means that we have this so far \[\Large \sqrt{6}\left(\cos(315) + i\sin(315)\right)\] \[\Large \sqrt{6}\left(\frac{\sqrt{2}}{2}  i*\frac{\sqrt{2}}{2}\right)\]
 one year ago

bleck19Best ResponseYou've already chosen the best response.0
so like (22i) sqrt3 @jim_thompson5910
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
how did you get that
 one year ago

bleck19Best ResponseYou've already chosen the best response.0
I have no clue ... I messed up on the way Im thinking it was either A or C but Im leaning towards A
 one year ago

jim_thompson5910Best ResponseYou've already chosen the best response.1
\[\Large \sqrt{6}\left(\cos(315) + i\sin(315)\right)\] \[\Large \sqrt{6}\left(\frac{\sqrt{2}}{2}  i*\frac{\sqrt{2}}{2}\right)\] \[\Large \sqrt{6}*\left(\frac{\sqrt{2}}{2}\right)  i*\sqrt{6}*\left(\frac{\sqrt{2}}{2}\right)\] \[\Large \frac{\sqrt{6}*\sqrt{2}}{2}  i*\frac{\sqrt{6}*\sqrt{2}}{2}\] \[\Large \frac{\sqrt{6*2}}{2}  i*\frac{\sqrt{6*2}}{2}\] \[\Large \frac{\sqrt{12}}{2}  i*\frac{\sqrt{12}}{2}\] \[\Large \frac{\sqrt{4*3}}{2}  i*\frac{\sqrt{4*3}}{2}\] \[\Large \frac{\sqrt{4}*\sqrt{3}}{2}  i*\frac{\sqrt{4}*\sqrt{3}}{2}\] \[\Large \frac{2*\sqrt{3}}{2}  i*\frac{2*\sqrt{3}}{2}\] \[\Large \sqrt{3}  i*\sqrt{3}\] \[\Large \sqrt{3}  \sqrt{3}*i\]
 one year ago
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