Expression 7: "y" equals cosine left parenthesis, StartFraction, "x" Over StartRoot, 2 , EndRoot , EndFraction , right parenthesisy=cosx2
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Expression 8: "y" equals 2 plus left brace, abs left parenthesis, "x" , right parenthesis greater than StartFraction, pi Over 2 , EndFraction : StartRoot, StartFraction, 2 Over pi times abs left parenthesis, "x" , right parenthesis , EndFraction , EndRoot cos left parenthesis, abs left parenthesis, "x" , right parenthesis minus StartFraction, pi Over 4 , EndFraction , right parenthesis , cos left parenthesis, StartFraction, "x" Over StartRoot, 2 , EndRoot , EndFraction , right parenthesis , right bracey=2+absx>π2:2π·absxcosabsx−π4,cosx2
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Expression 9: signum left parenthesis, "x" , right parenthesis StartRoot, StartFraction, 2 Over pi times abs left parenthesis, "x" , right parenthesis , EndFraction , EndRoot sine left parenthesis, abs left parenthesis, "x" , right parenthesis minus StartFraction, pi Over 4 , EndFraction , right parenthesissignx2π·absxsinabsx−π4
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Expression 10: "y" equals 0.5 8 1 8 6 5sine left parenthesis, StartFraction, pi Over 2 , EndFraction StartFraction, "x" Over 1.8 4 1 1 8 3 8 , EndFraction , right parenthesis plus 0 times 0.5 3sine left parenthesis, StartFraction, "x" Over StartRoot, 2 , EndRoot , EndFraction , right parenthesisy=0.581865sinπ2x1.8411838+0·0.53sinx2
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Expression 11: "y" equals 2 plus left brace, abs left parenthesis, "x" , right parenthesis greater than 2.4 : sign left parenthesis, "x" , right parenthesis StartRoot, StartFraction, 2 Over pi times abs left parenthesis, "x" , right parenthesis , EndFraction , EndRoot sin left parenthesis, abs left parenthesis, "x" , right parenthesis minus StartFraction, pi Over 4 , EndFraction , right parenthesis , 0.5 8 1 8 6 5sin left parenthesis, StartFraction, pi Over 2 , EndFraction StartFraction, "x" Over 1.8 4 1 1 8 3 8 , EndFraction , right parenthesis , right bracey=2+absx>2.4:signx2π·absxsinabsx−π4,0.581865sinπ2x1.8411838
Expression 13: negative 2 plus StartFraction, sin left parenthesis, "x" , right parenthesis Over "x" , EndFraction−2+sinxx
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Expression 14: negative 2 plus StartFraction, sin left parenthesis, "x" , right parenthesis Over "x" squared , EndFraction minus StartFraction, cos left parenthesis, "x" , right parenthesis Over "x" , EndFraction−2+sinxx2−cosxx