A:16
B:16或64
C:64
D:都不对
(Ⅰ)当 a=4 时,求不等式 f(x)>2 的解集;
(Ⅱ)若 f(x)≥|x−4| 的解集包含 2,3 ,求实数 a 的取值范围.
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Mind maps are a great way of showing a picture of information.They work very well in all kinds of learning.Here is an example to show us how to draw a mind map.
To make the mind map even better,use color to show important ideas or parts of the map.