表达式4: "f" left parenthesis, "z" , right parenthesis equals negative StartFraction, 2 Over "z" minus 1 , EndFraction minus 1fz=−2z−1−1
4
表达式5: left parenthesis, left parenthesis, 1 minus "T" , right parenthesis StartRoot, 1 minus "t" squared , EndRoot plus "T" "f" left parenthesis, "t" , right parenthesis , left parenthesis, 1 minus "T" , right parenthesis "t" plus "T" sin left parenthesis, "f" left parenthesis, "t" , right parenthesis , right parenthesis , right parenthesis1−T1−t2+Tft,1−Tt+Tsinft
定义域t最小值： negative 1−1
less than or equal to "t" less than or equal to≤t≤
定义域t最大值： 11
5
表达式6: left parenthesis, negative left parenthesis, 1 minus "T" , right parenthesis StartRoot, 1 minus "t" squared , EndRoot minus "T" "f" left parenthesis, "t" , right parenthesis , left parenthesis, 1 minus "T" , right parenthesis "t" minus "T" sin left parenthesis, "f" left parenthesis, "t" , right parenthesis , right parenthesis , right parenthesis−1−T1−t2−Tft,1−Tt−Tsinft
定义域t最小值： negative 1−1
less than or equal to "t" less than or equal to≤t≤
