Expression 12: sine ( "x" "x" plus "y" "y" ) equals "x" "y"sin(xx+yy)=xy
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Expression 13: sine ( "x" "x" "x" plus "y" "y" "y" ) equals "x" "x" "y" "y"sin(xxx+yyy)=xxyy
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Expression 14: sine ( "x" "x" plus "y" "y" ) equals sine ( "x" "y" )sin(xx+yy)=sin(xy)
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Expression 15: sine ( "x" plus "y" ) equals sine ( "x" minus "y" )sin(x+y)=sin(x−y)
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Expression 16: sine ( "x" * "y" ) equals 0.5sin(x*y)=0.5
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Expression 17: sine left parenthesis, StartFraction, "x" "x" "x" Over "y" "y" , EndFraction , right parenthesis equals 0.2sinxxxyy=0.2
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Expression 18: sine left parenthesis, "x" "y" , right parenthesis equals StartFraction, "x" plus "y" Over left parenthesis, "x" "y" , right parenthesis , EndFractionsinxy=x+yxy
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Expression 19: sine left parenthesis, 20 "x" , right parenthesis plus cosine left parenthesis, 20 "y" , right parenthesis equals "x" "y"sin20x+cos20y=xy
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Expression 20: sine ( "x" plus "y" ) equals cosine squared ( "x" ) plus cosine squared ( "y" )sin(x+y)=cos2(x)+cos2(y)
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Expression 21: sine ( "x" ! "y" ! ) equals cosine ( "y" ! "x" ! )sin(x!y!)=cos(y!x!)
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Expression 22: "x" plus "y" plus cosine left parenthesis, 4 "x" , right parenthesis plus sine left parenthesis, 4 "y" , right parenthesis equals 4x+y+cos4x+sin4y=4
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Expression 23: sine left parenthesis, "x" "y" , right parenthesis equals cosine left parenthesis, "x" , right parenthesis plus cosine left parenthesis, "y" , right parenthesissinxy=cosx+cosy
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Expression 24: left parenthesis, cos left parenthesis, "x" , right parenthesis , right parenthesis left parenthesis, cos left parenthesis, "y" , right parenthesis , right parenthesis equals .0 5cosxcosy=.05