In 2009, Nanchang, Jiangxi Province took the senior high school entrance examination for the eighth problem of mathematics (the topic is in the middle. )

Isn't it obvious? Be clear at a glance. This little brother (little sister), first of all, you should see the topic clearly and the picture clearly. The symmetry axis is not 1, but a number slightly larger than 1, let x0. X is in 1~x0, y decreases with the increase of x, x0 goes to infinity, y increases with the increase of x, take a closer look, hehe,,,

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New curriculum standard of junior high school mathematics published by People's Education Press.

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In the second grade, I went to math school.

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Grade five, volume two, high marks in Chinese, top-notch d26 answer.

Fibonacci sequence and music! ! ! ! ! ! ! ! ! ! ! ! ! ! !

I am a science student in senior three, and I have been in the college entrance examination for five and a half months. My foundation is very poor. I don't even know math, English, physical chemistry.