document.write( "Question 812729: Evaluate sec(−t) if cos t=(-5/6)
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Algebra.Com's Answer #489407 by stanbon(75887)\"\" \"About 
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Evaluate sec(−t) if cos(t) = (-5/6)
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\n" ); document.write( "sec(t) = -6/5
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\n" ); document.write( "sec(-t) = sec(t)
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\n" ); document.write( "Therefore sec(-5) = -5/6
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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