document.write( "Question 1160752: Show that z^n +(complex conjugate of z)^n is always real for integer n. \n" ); document.write( "

Algebra.Com's Answer #784185 by math_helper(2461) $\"\"$ $\"About$

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document.write( "x = a+bi  =  
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document.write( "x_ = a-bi = \r
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document.write( "(x_ is complex conjugate of x)\r
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document.write( "where M= and \r
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document.write( " = 
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document.write( " = 
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document.write( "=  \r
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document.write( " =  \r
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document.write( "Notice   has no imaginary component, hence it is strictly real.\r
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