表达式5: "f" left parenthesis, "x" , right parenthesis equals negative StartFraction, 31 Over 105 , EndFraction "x" cubed minus 2 thirds "x" squared plus StartFraction, 92 Over 105 , EndFraction "x" plus StartFraction, 23 Over 35 , EndFractionfx=−31105x3−23x2+92105x+2335
5
表达式6: left parenthesis, "c" , "f" left parenthesis, "c" , right parenthesis , right parenthesis left parenthesis, 1 minus "t" , right parenthesis plus left parenthesis, "c" plus 1 , "f" left parenthesis, "c" , right parenthesis minus 16 , right parenthesis "t"c,fc1−t+c+1,fc−16t
定义域t最小值： negative 1−1
less than or equal to "t" less than or equal to≤t≤
11
定义域t最大值：
6
标签 left parenthesis, "c" , "f" left parenthesis, "c" , right parenthesis , right parenthesisc,fc
标签:
equals=
left parenthesis, 4 , negative 25.4 , right parenthesis4,−25.4
7
8
技术支持
技术支持
left parenthesis, negative 3 , 0 , right parenthesis−3,0
left parenthesis, negative 2 , negative 1.4 , right parenthesis−2,−1.4
left parenthesis, 4 , negative 25.4 , right parenthesis4,−25.4
