document.write( "Question 1044442: 2cos(x-π/2)+3sin(x+π/2)-(3sinx+2cosx)=? \n" ); document.write( "

Algebra.Com's Answer #659816 by Cromlix(4381) $\"\"$ $\"About$

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Hi there,
\n" ); document.write( "2cos(x-π/2)+3sin(x+π/2)-(3sinx+2cosx)=
\n" ); document.write( "Multiply out.
\n" ); document.write( "2cos(x) - 2cos(π/2) + 3sin(x) + 3sin(π/2) - 3sin(x) - 2cos(x)
\n" ); document.write( "cosπ/2 = 0
\n" ); document.write( "sinπ/2 = 1
\n" ); document.write( "So equation is now:-
\n" ); document.write( "2cos(x) + 3sin(x) + 3 - 3sin(x) - 2cos(x)
\n" ); document.write( "(2cos(x)'s cancel out)
\n" ); document.write( "(3sin(x)'s cancel out)
\n" ); document.write( "Answer
\n" ); document.write( "= 3.
\n" ); document.write( "Hope this helps :-) \n" ); document.write( "

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