Expression 15: tangent left parenthesis, 120 , right parenthesis left parenthesis, "x" minus "C" Subscript, 1 , Baseline , right parenthesis equals tangent left parenthesis, 80 , right parenthesis "x"tan120x−C1=tan80x
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Expression 16: "D" Subscript, 1 , Baseline equals StartFraction, tan left parenthesis, 120 , right parenthesis "C" Subscript, 1 , Baseline Over tan left parenthesis, 120 , right parenthesis minus tan left parenthesis, 80 , right parenthesis , EndFractionD1=tan120C1tan120−tan80
equals=
2.3 3 9 5 5 5 5 6 8 8 12.33955556881
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Expression 17: "D" Subscript, 2 , Baseline equals tangent left parenthesis, 80 , right parenthesis "D" Subscript, 1 , BaselineD2=tan80D1
equals=
13.2 6 8 2 7 8 9 6 3 413.2682789634
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Expression 18: tangent left parenthesis, 70 , right parenthesis "x" equals tangent left parenthesis, 100 , right parenthesis left parenthesis, "x" minus "C" Subscript, 1 , Baseline , right parenthesistan70x=tan100x−C1
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Expression 19: "E" Subscript, 1 , Baseline equals StartFraction, negative tan left parenthesis, 100 , right parenthesis "C" Subscript, 1 , Baseline Over tan left parenthesis, 70 , right parenthesis minus tan left parenthesis, 100 , right parenthesis , EndFractionE1=−tan100C1tan70−tan100
equals=
6.7 3 6 4 8 1 7 7 6 6 76.73648177667
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Expression 20: "E" Subscript, 2 , Baseline equals tangent left parenthesis, 70 , right parenthesis "E" Subscript, 1 , BaselineE2=tan70E1
equals=
18.5 0 8 3 3 1 5 6 818.508331568
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Graphs
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Expression 22: "y" less than 50y<50
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Expression 23: polygon left parenthesis, "A" , "B" , "A" , "E" , "D" , "C" , "A" , "B" , "C" , right parenthesispolygonA,B,A,E,D,C,A,B,C
