表达式24: "C" Subscript, "D" "F" , Baseline equals cosine to the negative 1st power StartFraction, "s" Over "D" Subscript, "F" , Baseline , EndFractionCDF=cos−1sDF
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表达式25: "F" Subscript, 1 , Baseline equals "D" Subscript, 1 , Baseline plus "D" Subscript, "F" , Baseline cosine left parenthesis, 90 plus "C" Subscript, "D" "F" , Baseline , right parenthesisF1=D1+DFcos90+CDF
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表达式26: "F" Subscript, 2 , Baseline equals "D" Subscript, 2 , Baseline plus "D" Subscript, "F" , Baseline sine left parenthesis, 90 plus "C" Subscript, "D" "F" , Baseline , right parenthesisF2=D2+DFsin90+CDF
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CDF : 3-4-5-Triangle, so F2 = s and F1 =
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表达式28: "C" Subscript, 1 , Baseline minus 3C1−3
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表达式29: "G" Subscript, 1 , Baseline equals "E" Subscript, 1 , Baseline plus StartFraction, "X" Over StartRoot, "E" squared plus "E" squared , EndRoot , EndFraction left parenthesis, "A" Subscript, 1 , Baseline minus "E" Subscript, 1 , Baseline , right parenthesisG1=E1+XE21+E22A1−E1
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表达式30: "G" Subscript, 2 , Baseline equals "E" Subscript, 2 , Baseline plus StartFraction, "X" Over StartRoot, "E" squared plus "E" squared , EndRoot , EndFraction left parenthesis, "A" Subscript, 2 , Baseline minus "E" Subscript, 2 , Baseline , right parenthesisG2=E2+XE21+E22A2−E2
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表达式31: "M" Subscript, 1 , Baseline equals "D" Subscript, 1 , Baseline plus "D" Subscript, "M" , Baseline cosine left parenthesis, 180 minus StartFraction, "A" Subscript, "D" "F" , Baseline Over 2 , EndFraction , right parenthesisM1=D1+DMcos180−ADF2
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表达式32: "M" Subscript, 2 , Baseline equals "D" Subscript, 2 , Baseline plus "D" Subscript, "M" , Baseline sine left parenthesis, 180 minus StartFraction, "A" Subscript, "D" "F" , Baseline Over 2 , EndFraction , right parenthesisM2=D2+DMsin180−ADF2
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Graphs
对学生隐藏该文件夹。
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表达式34: "y" less than 25y<25
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表达式35: left parenthesis, "M" Subscript, 1 , Baseline plus "R" cos "t" , "M" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisM1+Rcost,M2+Rsint
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表达式36: polygon left parenthesis, "A" , "E" , "A" , "B" , "C" , "D" , "F" , "D" , right parenthesispolygonA,E,A,B,C,D,F,D
