document.write( "Question 1158756: My teacher has not gone over this and I need help! The problem asks to express the following fraction as a cofunction of a complementary angle. If you know how to do this please show me the steps so I can understand how to do these types of problems. Thank you!\r
\n" ); document.write( "\n" ); document.write( "a). cos 3pi/8\r
\n" ); document.write( "\n" ); document.write( "b).tan 2
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Algebra.Com's Answer #781734 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "As the \"co\" in \"cosine\" implies, it means we are talking about the cofunction to sine.\r
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\n" ); document.write( "\n" ); document.write( "Through the use of this cofunction identity
\n" ); document.write( "\"cos%28x%29+=+sin%28pi%2F2+-+x%29\"\r
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\n" ); document.write( "\n" ); document.write( "we can say the following:
\n" ); document.write( "\"cos%28x%29+=+sin%28pi%2F2+-+x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"cos%283pi%2F8%29+=+sin%28pi%2F2+-+3pi%2F8%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"cos%283pi%2F8%29+=+sin%284pi%2F8+-+3pi%2F8%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"cos%283pi%2F8%29+=+highlight%28sin%28pi%2F8%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "--------------------------------------------------------\r
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\n" ); document.write( "\n" ); document.write( "Similarly,
\n" ); document.write( "\"tan%28x%29+=+cot%28pi%2F2+-+x%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"tan%282%29+=+cot%28pi%2F2+-+2%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"tan%282%29+=+cot%28pi%2F2+-+4%2F2%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"tan%282%29+=+highlight%28cot%28%28pi-4%29%2F2%29%29\"
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