นิพจน์ 18: "M" Subscript, 2 , Baseline equals tangent left parenthesis, "B" Subscript, "A" "C" , Baseline plus 90 , right parenthesis left parenthesis, negative "L" Subscript, 1 , Baseline , right parenthesis plus "L" Subscript, 2 , BaselineM2=tanBAC+90−L1+L2
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นิพจน์ 19: "y" equals tangent left parenthesis, "B" Subscript, "A" "C" , Baseline plus 90 , right parenthesis left parenthesis, "x" minus "L" Subscript, 1 , Baseline , right parenthesis plus "L" Subscript, 2 , Baseliney=tanBAC+90x−L1+L2
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นิพจน์ 20: "x" equals "M" Subscript, 1 , Baselinex=M1
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Graphs
ซ่อนโฟลเดอร์นี้จากนักเรียน
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นิพจน์ 22: "y" less than 40y<40
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นิพจน์ 23: left parenthesis, "M" Subscript, 1 , Baseline plus "t" "R" , "M" Subscript, 2 , Baseline , right parenthesisM1+tR,M2
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นิพจน์ 24: polygon left parenthesis, "A" , "B" , "A" , "C" , "A" , "D" , right parenthesispolygonA,B,A,C,A,D
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นิพจน์ 25: left parenthesis, "M" Subscript, 1 , Baseline plus "R" cos "t" , "M" Subscript, 2 , Baseline plus "R" sin "t" , right parenthesisM1+Rcost,M2+Rsint
