document.write( "Question 1034380: Find parametric equations for the rectangular equation x² + y² = 4.\r
\n" ); document.write( "\n" ); document.write( "x = cos(2t), y = sin(2t), 0° < t < 360°
\n" ); document.write( "x = 4 cos(t), y = 4 sin(t), 0° < t < 360°
\n" ); document.write( "x = 2 cos(t), y = 2 sin(t), 0° < t < 360°
\n" ); document.write( "x = 16 cos(t), y = 16 sin(t), 0° < t < 360° \n" ); document.write( "

Algebra.Com's Answer #649016 by ikleyn(52782) $\"\"$ $\"About$

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\n" ); document.write( "Find parametric equations for the rectangular equation x² + y² = 4.\r
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document.write( "x = cos(2t), y = sin(2t), 0° < t < 360°\r\n" );
document.write( "x = 4 cos(t), y = 4 sin(t), 0° < t < 360°\r\n" );
document.write( "x = 2 cos(t), y = 2 sin(t), 0° < t < 360°       <--- This and only this\r\n" );
document.write( "x = 16 cos(t), y = 16 sin(t), 0° < t < 360°\r\n" );
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