Excuse me, what kind of feng shui is easy to ruin?

It is best to bend around and gather in depth, with animal stars such as Luoxing, Youyu, Beichen, Huabiao, Hanmen, Tortoise, Snake and Lion Elephant. It is best to use overlapping barriers to protect water. There are many ways to water, such as three-in-one water method, nine planetary water method, twelve water method, yin-yang water crossing method and so on.

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It will be adjusted and improved according to the status quo of the friends.

Promote career fortune and health fortune.

If you have any views on the fortune of traditional numerology or the eight-character "marriage numerology prediction"! Master Ta (oral color \ micro/? : 6 1 4 8,8 6,7)

X 1, x2∈(-∞0] and x 1 < x2, then

f(x 1)-f(x2)=(2x 1+2-x 1)-(2 x2+2 x2)=(2x 1 2x 1- 1 2 x2)=(2x 1-2 x2)(2x 1-2 x2)(2x 12 x2- 1)？ 2x 12x2？

∵x 1