求函数f(x, y)=(6x-x2)(4y-y2)的极值.

2025-01-05 08:00:52
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回答1:

f(x, y)=(6x-x2)(4y-y2)
=(-(x-3)∧2+9)(-(y-2)∧2+4)
x=3,y=2
f(x, y)min=36