表达式10: left parenthesis, left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "x" Subscript, 1 , Baseline plus "t" "x" Subscript, 2 , Baseline , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "x" Subscript, 2 , Baseline plus "t" "x" Subscript, 3 , Baseline , right parenthesis , left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "y" Subscript, 1 , Baseline plus "t" "y" Subscript, 2 , Baseline , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "y" Subscript, 2 , Baseline plus "t" "y" Subscript, 3 , Baseline , right parenthesis , right parenthesis1−t1−tx1+tx2+t1−tx2+tx3,1−t1−ty1+ty2+t1−ty2+ty3
定义域t最小值： 00
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 11
10
表达式11: left parenthesis, left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "x" Subscript, 0 , Baseline plus "t" "x" Subscript, 1 , Baseline , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "x" Subscript, 1 , Baseline plus "t" "x" Subscript, 2 , Baseline , right parenthesis , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "x" Subscript, 1 , Baseline plus "t" "x" Subscript, 2 , Baseline , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "x" Subscript, 2 , Baseline plus "t" "x" Subscript, 3 , Baseline , right parenthesis , right parenthesis , left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "y" Subscript, 0 , Baseline plus "t" "y" Subscript, 1 , Baseline , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "y" Subscript, 1 , Baseline plus "t" "y" Subscript, 2 , Baseline , right parenthesis , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "y" Subscript, 1 , Baseline plus "t" "y" Subscript, 2 , Baseline , right parenthesis plus "t" left parenthesis, left parenthesis, 1 minus "t" , right parenthesis "y" Subscript, 2 , Baseline plus "t" "y" Subscript, 3 , Baseline , right parenthesis , right parenthesis , right parenthesis1−t1−t1−tx0+tx1+t1−tx1+tx2+t1−t1−tx1+tx2+t1−tx2+tx3,1−t1−t1−ty0+ty1+t1−ty1+ty2+t1−t1−ty1+ty2+t1−ty2+ty3
定义域t最小值： 00
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 11
11
表达式12: "x" Subscript, 0 , Baseline equals 3.4 7x0=3.47
