document.write( "Question 180063: Find sec C and sin C if tan C =-1 and cos C>0 \n" ); document.write( "
Algebra.Com's Answer #134916 by HyperBrain(694)\"\" \"About 
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IF tan C=-1, then C=135 or 315 degrees.\r
\n" ); document.write( "\n" ); document.write( "C cannot be 135 degrees since cos 135=\"-sqrt%282%29%2F2\"\r
\n" ); document.write( "\n" ); document.write( "So, c=315 degrees\r
\n" ); document.write( "\n" ); document.write( "sin c=\"-sqrt%282%29%2F2\"
\n" ); document.write( "sec c=\"sqrt%282%29\"\r
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