document.write( "Question 830099: prove vertically \r
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Algebra.Com's Answer #500389 by Alan3354(69443)\"\" \"About 
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prove vertically \r
\n" ); document.write( "\n" ); document.write( "csc(x)= 5/3
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\n" ); document.write( "csc(x) is not always 5/3
\n" ); document.write( "It depends on the value of x.
\n" ); document.write( "eg, csc(pi/2) = 1
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