document.write( "Question 1162459: Consider the graphs of y=sin x and y=cos x. Determine 2 ways in which graph of cos function can be expressed as horizontal translation of the sin function. you can sketch these graphs. \n" ); document.write( "
Algebra.Com's Answer #786283 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "The red curve is of y = cos(x), the purple curve is of y = sin(x).\r\n" );
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document.write( "If we shift the purple (sine) curve left by π/2 units, it will\r\n" );
document.write( "coincide exactly with the red (cosine) curve.\r\n" );
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document.write( "That is to say \r\n" );
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document.write( "\"cos%28x%29=sin%28x%2Bpi%2F2%29\"\r\n" );
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document.write( "If we shift the purple (sine) curve right by 3π/2 units, it will also\r\n" );
document.write( "coincide exactly with the red (cosine) curve.\r\n" );
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document.write( "That is to say \r\n" );
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document.write( "\"cos%28x%29=sin%28x-3pi%2F2%29\"\r\n" );
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document.write( "Edwin
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