推 ahongyeh:這題我用算幾不等式就算出來了耶.. 219.68.189.249 04/29 11:01
推 astroinsky:這題是用Lagrange算喔 218.187.71.229 04/29 11:06
Find the minimum of the function f(x,y,z)=xy+4yz+8xz
subject to the constraint xyz=256
(The existence of the minimum is suggested by the geometry of the problem.)
這題要怎麼算 要用微分嗎
麻煩大大教教我
謝謝您
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