document.write( "Question 1165339: If tan β = 4/5 then, without a calculator, find tan( π/2 - β) and express the answer as a fraction. \n" ); document.write( "
Algebra.Com's Answer #852368 by noahmogs(1)\"\" \"About 
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tan(β)=4/5
\n" ); document.write( "π/2rad=90deg
\n" ); document.write( "When subtracting an angle in QI from 90 deg, move to QII.
\n" ); document.write( "Use the reciprocal function of tan:
\n" ); document.write( "cot(4/5)=5/4
\n" ); document.write( "Final Answer: 5/4\r
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