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24. 若P(x,y)為橢圓4x2+6y2-12y-6=0上任意一點,則x+3y的最大值為何?(A) (B) (C) (D)
問題詳情
24. 若P(x,y)為橢圓4x2+6y2-12y-6=0上任意一點,則x+3y的最大值為何?
(A)
(B)
(C)
(D)
參考答案
答案:D
難度:
計算中
-1
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