document.write( "Question 633402: Please explain why the polar coordinates of a point are not unique, but the rectangular coordinates of a point are unique. (Remember that the points are always unique.) Thanks!! \n" ); document.write( "

Algebra.Com's Answer #398886 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!
( $\"r\"$ , $\"theta\"$ )=( $\"r\"$ , $\"theta\"$ + $\"2kpi\"$ ) for every $\"k\"$ element of $\"Z\"$ \r
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\n" ); document.write( "\n" ); document.write( "but\r
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\n" ); document.write( "\n" ); document.write( " ( $\"x1\"$ , $\"y1\"$ )=( $\"x2\"$ , $\"y2\"$ ) <=> $\"x1=x2\"$ and $\"y1=y2\"$ \n" ); document.write( "

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