document.write( "Question 688288: Given that Tan y = 2/5, find 4/5Cos y - 3/4Sin y \n" ); document.write( "
Algebra.Com's Answer #425794 by lwsshak3(11628)\"\" \"About 
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Given that Tan y = 2/5, find 4/5Cos y - 3/4Sin y
\n" ); document.write( "tany=2/5=opposite side/adjacent side
\n" ); document.write( "hypotenuse=√(2^2+5^2)=√(4+25)=√29
\n" ); document.write( "cosy=5/√29
\n" ); document.write( "siny=2/√29
\n" ); document.write( "4/5Cos y-3/4Sin y
\n" ); document.write( "=(4/5)(5/√29)-(3/4)(2/√29)
\n" ); document.write( "=(4√29)–(3/2√29)
\n" ); document.write( "=(8-3)/2√29
\n" ); document.write( "=5/(2√29) \n" ); document.write( "
\n" );