Chapter 9, Lines, Planes, Simple Geometry

One. Lines and planes in space

9. Basic properties of1plane

9.2 Parallel straight lines and non-planar straight lines in space

9.3 The straight line is parallel to the plane, and the plane is parallel to the plane.

9.4 The straight line is perpendicular to the plane

Two. space vector

9.5 Space Vector and Its Operation

9.6 Coordinate operation of space vector

Three. Angle and distance

9.7 dihedral angle formed by straight line and plane

9.8 distance

Four.

9.9 Prisms and pyramids

9. 10 ball

Chapter 10 permutation, combination and binomial theorem

10. 1 classification counting principle and distribution counting principle

10.2 arrangement

10.3 combination

10.4 binomial theorem

Chapter 11 Probability

1 1. 1 probability of random events

1 1.2 mutually exclusive events has the probability of occurrence.

1 1.3 Probability of simultaneous occurrence of mutually independent events

that's it

It's easy to say.

Difficult, difficult.

Especially solid geometry.

There is a good imagination.

There is a picture in your mind.

I didn't expect to draw more pictures.

Don't be lazy.

In order to better understand

Only in this way can we learn the previous geometry well.

Theorem must be remembered, although it is annoying and chaotic.

But the big questions in the exam can be proved by theorems and inferences

You will know that kung fu is not practiced for nothing.

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