document.write( "Question 904892: Cosx=4/5 then tanx/[1+(tanx)^2] \n" ); document.write( "

Algebra.Com's Answer #549038 by lwsshak3(11628) $\"\"$ $\"About$

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Cosx=4/5 then tanx/[1+(tanx)^2]
\n" ); document.write( "Working with a 3-4-5 right triangle
\n" ); document.write( "tanx=3/4
\n" ); document.write( "tanx/[1+(tanx)^2]
\n" ); document.write( "=(3/4)(1+(3/4)^2)
\n" ); document.write( "=(3/4)+(3/4)^3)
\n" ); document.write( "=3/4+27/64
\n" ); document.write( "=48/64+27/64
\n" ); document.write( "=75/64 \n" ); document.write( "

\n" );