document.write( "Question 1165600: In your own words describe the geometric effect of multiplying a vector x ∈ R2 by the matrix,
\n" ); document.write( "􏰂 cos^2 θ−sin^2 θ −2sinθcosθ 􏰃
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Algebra.Com's Answer #790090 by ikleyn(52788) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "This matrix is the rotation matrix in the coordinate plane  by the angle  .\r\n" );
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\n" ); document.write( "\n" ); document.write( "See this Wikipedia article \r
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\n" ); document.write( "\n" ); document.write( "https://en.wikipedia.org/wiki/Rotation_matrix\r
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