表达式22: "B" Subscript, 2 , Baseline equals "m" Subscript, 2 , Baseline left parenthesis, "B" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline , right parenthesisB2=m2B1−A1
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表达式23: "A" Subscript, "B" "C" , Baseline equals tangent to the negative 1st power StartFraction, "A" Subscript, 1 , Baseline Over "B" Subscript, 2 , Baseline , EndFractionABC=tan−1A1B2
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表达式24: "m" Subscript, 3 , Baseline equals tangent left parenthesis, 90 plus StartFraction, "A" Subscript, "B" "C" , Baseline Over 2 , EndFraction , right parenthesism3=tan90+ABC2
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表达式25: "f" left parenthesis, "x" , right parenthesis equals "m" Subscript, 3 , Baseline left parenthesis, "x" minus "B" Subscript, 1 , Baseline , right parenthesis plus "B" Subscript, 2 , Baselinefx=m3x−B1+B2
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表达式26: "g" left parenthesis, "x" , right parenthesis equals StartRoot, 30.5 squared minus left parenthesis, "x" minus "E" Subscript, 1 , Baseline , right parenthesis squared , EndRoot plus "E" Subscript, 2 , Baselinegx=30.52−x−E12+E2
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表达式27: "f" left parenthesis, "F" Subscript, 1 , Baseline , right parenthesis tilde "g" left parenthesis, "F" Subscript, 1 , Baseline , right parenthesisfF1~gF1
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表达式28: "F" Subscript, 2 , Baseline equals "g" left parenthesis, "F" Subscript, 1 , Baseline , right parenthesisF2=gF1
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Graphs
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表达式30: left parenthesis, "F" Subscript, 1 , Baseline plus 12.5cos "t" , "F" Subscript, 2 , Baseline plus 12.5sin "t" , right parenthesisF1+12.5cost,F2+12.5sint
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表达式31: left parenthesis, "D" Subscript, 1 , Baseline plus "D" Subscript, 2 , Baseline cos "t" , "D" Subscript, 2 , Baseline plus "D" Subscript, 2 , Baseline sin "t" , right parenthesisD1+D2cost,D2+D2sint
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表达式32: left parenthesis, "E" Subscript, 1 , Baseline plus "E" Subscript, 2 , Baseline cos "t" , "E" Subscript, 2 , Baseline plus "E" Subscript, 2 , Baseline sin "t" , right parenthesisE1+E2cost,E2+E2sint
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表达式33: polygon left parenthesis, "B" , "D" , "E" , "F" , right parenthesispolygonB,D,E,F
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表达式34: polygon left parenthesis, "A" , "B" , "C" , right parenthesispolygonA,B,C
