運算式 4: "T" Subscript, "R" "i" "a" "n" "g" "l" "e" 1 , Baseline equals StartFraction, left parenthesis, 0 minus left parenthesis, negative 4 , right parenthesis , right parenthesis left parenthesis, 4 minus 1 , right parenthesis Over 2 , EndFractionTRiangle1=0−−44−12
4
運算式 5: "T" Subscript, "R" "i" "a" "n" "g" "l" "e" 2 , Baseline equals StartFraction, left parenthesis, 1 minus left parenthesis, negative 1 , right parenthesis , right parenthesis left parenthesis, negative 2 minus left parenthesis, negative 4 , right parenthesis , right parenthesis Over 2 , EndFractionTRiangle2=1−−1−2−−42
5
運算式 6: "T" Subscript, "R" "i" "a" "n" "g" "l" "e" 3 , Baseline equals StartFraction, 4 times 2 Over 2 , EndFractionTRiangle3=4·22
6
運算式 7: "T" Subscript, "R" "i" "a" "n" "g" "l" "e" 4 , Baseline equals StartFraction, left parenthesis, 2 minus left parenthesis, negative 2 , right parenthesis , right parenthesis left parenthesis, negative left parenthesis, negative 1 , right parenthesis , right parenthesis Over 2 , EndFractionTRiangle4=2−−2−−12
