document.write( "Question 711258: Explain how to find the value of cos49 using the sin function. (hint: how does the cosine relate to the sine?)\r
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Algebra.Com's Answer #437343 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Explain how to find the value of cos49 using the sin function. (hint: how does the cosine relate to the sine?)
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\n" ); document.write( "\"sin%5E2%28x%29+%2B+cos%5E2%28x%29+=+1\"
\n" ); document.write( "\"cos%2849%29+=+sqrt%281+-+sin%5E2%2849%29%29\"
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