The tree of wisdom knows the mathematical zero distance (Harbin Engineering University) chapter 2023 test answer.

Chapter 1 Testing

1, a soldier left behind said: I am getting closer and closer to the big army. ? The distance between the soldiers and the army here refers to the distance between the soldiers and the farthest person in the big army. ( )

Correct answer: X.

There may be many formulas for the distance from point A to point B on the ground. ( )

Correct answer:?

3. Absolute value is a normal state. ( )

Correct answer:?

The picture below is a street map. Suppose the length of the unit street is 1, and the Manhattan distance from point A to point B is ().

A、

b、5

d、

Correct answer: b

5. Given two vectors X=( 1, 3.4,2) and y = (2,5,3,6), where are these two vectors? -The norm-induced distance is ().

Answer, 4

d、

Correct answer: a

6. For points A and B in the figure below, the distance between the two points is given as () based on the norm.

A、

D, the above three items are incorrect

Correct answer: a

Chapter II Testing

1, in the definition of stability, about? Which of the following statements is correct about the choice of ()

First, is there? & gt0,? Only with? involve

B, is there? & gt0,? Only related to t0.

C, for any? & gt0,? It must have something to do with t0.

D, is there? & gt0,? Maybe? , related to t0

Correct answer: D.

2. Assume that the energy transfer model of domino effect is en = cen-1(c >; 1), then when n, the energy will be ().

First, tend to infinity

B, tend to C.

C, it must be bounded

D, uncertain

Correct answer: a

3. According to Torricelli's principle, when an object is only acted by gravity, its balance is stable when its center of gravity is the lowest. ( )

Correct answer:?

4、? Expressway usually has a speed limit? It's because the speed makes people in the car afraid. ( )

Correct answer: X.

According to the way British physicist Whitehead made dominoes, the transmitted energy they produced will tend to infinity, which can destroy anything. ( )

Correct answer: X.

6. We all know? Unstable on one leg? Here? Unstable? What do you mean? People should never fall down standing on one leg? . ( )

Correct answer: X.

Chapter III Testing

1, the least square method aims to reach the minimum value of () to solve the contradictory equations.

A, residual sum of squares

B. Sum of residuals

C, sum of absolute values of residuals

D, maximum residual.

Correct answer: a

2, about the equation logic ()

A, do not admit that the measurement data is biased.