Question 973493
Is this it?
{{{ 5 / ( 2*( cos(150) + i*sin(150) ) ) }}}
{{{  150 = 180 - 30 }}}
so, 150 degrees is in the 2nd quadrant and makes
a 30 degree angle with the negative x-axis
{{{ cos( 150 ) = -sqrt(3) / 2 }}}
{{{ sin( 150 ) = 1/2 }}}
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Now I have:
{{{ 5 / ( 2*( -sqrt(3)/2 + i/2 )) }}}
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{{{ 5 / ( sqrt(3) + i ) }}}
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Multiply top and bottom by {{{ sqrt(3) - i }}}
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{{{ (( sqrt(3) - i ) / ( sqrt(3) - i ))*( 5 / ( sqrt(3) + i ) ) }}}
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{{{ ( 5*( sqrt(3) - i )) / ( 3 + 1 ) }}}
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{{{ ( 5/4)*sqrt(3) - (5/4)*i }}}
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Hope I got it -check my math