x |
10 |
現(xiàn)在賣出個數(shù)為B(1-
bx |
10 |
現(xiàn)在售貨金額為A(1+
x |
10 |
bx |
10 |
x |
10 |
bx |
10 |
應(yīng)交稅款為AB(1+
x |
10 |
bx |
10 |
a |
10 |
剩余款為y=AB(1+
x |
10 |
bx |
10 |
a |
10 |
a |
10 |
b |
100 |
1?b |
10 |
所以x=
5(1?b) |
b |
要使y最大,x的值為
5(1?b) |
b |
x |
10 |
x |
10 |
bx |
10 |
x |
10 |
bx |
10 |
x |
10 |
bx |
10 |
x |
10 |
bx |
10 |
a |
10 |
x |
10 |
bx |
10 |
a |
10 |
a |
10 |
b |
100 |
1?b |
10 |
5(1?b) |
b |
5(1?b) |
b |