document.write( "Question 961795: Which expression completes the trigonometric identity?
\n" ); document.write( "sec((pi/2)-theta)\r
\n" ); document.write( "\n" ); document.write( "A. -cos theta
\n" ); document.write( "B. sin theta
\n" ); document.write( "C. sec theta
\n" ); document.write( "D. csc theta
\n" ); document.write( "

Algebra.Com's Answer #587661 by stanbon(75887)\"\" \"About 
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Which expression completes the trigonometric identity?
\n" ); document.write( " sec((pi/2)-theta)
\n" ); document.write( "------
\n" ); document.write( "sec and csc are complementary functions.
\n" ); document.write( "---
\n" ); document.write( "sec((pi/2)-theta) = csc(theta)
\n" ); document.write( "--------------------
\n" ); document.write( "cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "--------------
\n" ); document.write( "A. -cos theta
\n" ); document.write( " B. sin theta
\n" ); document.write( " C. sec theta
\n" ); document.write( " D. csc theta
\n" ); document.write( "
\n" );