document.write( "Question 986688: if (x+iy)^3=y+vi then show that y/x+v/y=4(x^2-y^2) \n" ); document.write( "
Algebra.Com's Answer #607603 by josgarithmetic(39625)\"\" \"About 
You can put this solution on YOUR website!
\"x%5E3%2B3x%5E2%28iy%29%2B3x%28iy%29%5E2%2B%28iy%29%5E3=y%2Bvi\"
\n" ); document.write( "\"x%5E3%2B3ix%5E2y-3xy%5E2-iy%5E3=y%2Bvi\"
\n" ); document.write( "\"x%5E3-3xy%5E2%2Bi3x%5E2y-iy%5E3=y%2Bvi\"
\n" ); document.write( "\"%28x%5E3-3xy%5E2%29%2B%283x%5E2-y%5E3%29%2Ai=y%2Bvi\"\r
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\n" ); document.write( "\n" ); document.write( "Each member is in the form \"a%2Bbi\" and corresponding coefficients can be equated.\r
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\n" ); document.write( "\n" ); document.write( "\"system%28x%5E3-3xy%5E2=y%2C3x%5E2-y%5E3=v%29\"\r
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\n" ); document.write( "\n" ); document.write( "Try finding a formula for \"y%2Fx\" using the first equation; and try getting \"v%2Fy\" using the second equation and see what more you can find from those. ( I have not yet tried myself to finish this.)
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