document.write( "Question 886133: Find value of tan θ , given cos θ =9/41, with 270 degrees less than or equal to θ less than 360 degrees. \n" ); document.write( "

Algebra.Com's Answer #535720 by lwsshak3(11628) $\"\"$ $\"About$

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Find value of tan θ , given cos θ =9/41, with 270 degrees less than or equal to θ less than 360 degrees.
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\n" ); document.write( "reference angle θ is in quadrant IV in which sin<0, cos>0
\n" ); document.write( "cos θ =9/41
\n" ); document.write( "sin θ=-√(1-cos^2 θ)=-√(1-81/1681)=-√(1600/1681)=-40/41
\n" ); document.write( "tan θ=sin θ/cos θ
\n" ); document.write( "tan θ=-40/9\r
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