101x
9000+6X:8100+100x+x
4. 對任一實數a,令[a]代表滿足[a]<a<[a]+1的整數,例如:[3]=3,[3.1]=3,
[-3.1]=-4。關於函數f(x)=[99-x]+[v99+x],其中-99≤x≤99。試選出正
確的選項。 AD
(A)f(-20)≤f(0)<f(1)
(C)f(1)<f(-20)≤f(0)
(B)f(-20)<f(1)≤f(0)
(D)f(0)<f(-20)≤f(1)
X2+10x-90:0
-6±3054 -bot
(C) B 513-53 ≈ 3-6-1-7=1-9
10 × 1.2 MB √ √ √
· 115學測A
72-
(E)f(0)≤f(1) <f(-20)
(A)
(3-5)² = 12.5 2.1336.57
(B)
(3-6)²=12-96 = 13> (3-6)²
(D) 13 +53 ≈ 3.649-1=5.3>4
素養導向試題
(E)
「算幾不等式」是利用國內的「宀工平
1018000
Jil+J 1-671-16
J13-15 13-3 ~ To =0.5340.6
