Question 1 1, according to the topic, we can draw the function of f(x), and intuitively see that monotonicity is monotonous. Since it is monotonous, if you want F (1-x 2) > F (2x) to hold, then1-x 2 > 2x will hold forever, and a range can be solved because X.

Question 12, you don't know what to do now. You didn't start learning until you were a senior in high school. This is not in the book. There are many Cauchy inequalities.

Obviously, you are weak in solving inequalities.

I am a candidate from Jiangsu in 2008, and I miss the past a little. Let's look at this year's topic. Personally, I don't think it is very difficult. I wish you 1 1 success in the college entrance examination, and I 1 1 take the postgraduate entrance examination. Hmm. How interesting