document.write( "Question 895978: derive the cosine and sine functional values for t = pie/3 \n" ); document.write( "
Algebra.Com's Answer #543149 by jim_thompson5910(35256)\"\" \"About 
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Using this unit circle\r
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\n" ); document.write( "\n" ); document.write( "(Image Source: Wikipedia http://en.wikipedia.org/wiki/File:Unit_circle_angles_color.svg )\r
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\n" ); document.write( "\n" ); document.write( "we see that at the angle \"pi%2F3\" we have the point (look at the 60 degree angle)\r
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\n" ); document.write( "\n" ); document.write( "The x coordinate of this point is equal to \"cos%28pi%2F3%29\"\r
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\n" ); document.write( "\n" ); document.write( "So, \"cos%28pi%2F3%29=1%2F2\"\r
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\n" ); document.write( "\n" ); document.write( "The y coordinate of this point is equal to \"sin%28pi%2F3%29\"\r
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\n" ); document.write( "\n" ); document.write( "So, \"sin%28pi%2F3%29=sqrt%283%29%2F2\"\r
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