document.write( "Question 1034379: Write the equation of the conic section x² + y² = 4 after a rotation of 45° about the origin.\r
\n" ); document.write( "\n" ); document.write( "(x')² - 2x'y' + (y')² = 4
\n" ); document.write( "(x')² + (y')² = 16
\n" ); document.write( "(x')² + 2x'y' + (y')² = 16
\n" ); document.write( "(x')² + (y')² = 4 \n" ); document.write( "

Algebra.Com's Answer #649017 by ikleyn(52787) $\"\"$ $\"About$

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\n" ); document.write( "Write the equation of the conic section x² + y² = 4 after a rotation of 45° about the origin.\r
\n" ); document.write( "
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document.write( "(x')² - 2x'y' + (y')² = 4\r\n" );
document.write( "(x')² + (y')² = 16\r\n" );
document.write( "(x')² + 2x'y' + (y')² = 16\r\n" );
document.write( "(x')² + (y')² = 4                <--- This and only this\r\n" );
document.write( "

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