Expression 4: "y" equals left parenthesis, 1 third , right parenthesis cubed minus 5 times left parenthesis, 1 third , right parenthesis squared plus 3 times 1 thirdy=133−5·132+3·13
equals=
0.4 8 1 4 8 1 4 8 1 4 8 10.481481481481
4
z的最小值点 left parenthesis, negative 1 , negative 9 , right parenthesis−1,−9
Label:
5
z的最大值点 left parenthesis, 13 thirds , left parenthesis, 1 third , right parenthesis cubed minus 5 times left parenthesis, 1 third , right parenthesis squared plus 3 times 1 third , right parenthesis133,133−5·132+3·13