How to write on page 75 of the first volume of synchronous exercises of mathematics in grade three?

The included angle between the exercises on page 75 1 and 30 in the second semester of junior high school mathematics in Shanghai is () [multiple choice] *A, the first quadrant (correct answer) b, the first quadrant c, the third quadrant d and the fourth quadrant 2, 2 1. It is known that the set A = {x |-2m} and b = {If A∩B=B, the range of the real number m is _ _. [multiple choice questions] *A 2≤x≤3 (correct answer) B2 < x ≤ 3c2 ≤ x < 3D 2<x & lt33, 44. If A+B = 6 and AB = 4, the value of a2+4ab+b2 is () [multiple choice question] *A.40B.44 (correct answer) C.48D.524 is () [multiple choice question] *7π/3. Then the coordinates of the point corresponding to this point are () [multiple choice question] * A A. (2,9 9) B (5 5,3) C (12) (correct answer) D (-9,4) 6,36. In the following life example, the wrong explanation of mathematical principles is () [multiple choice questions]. There is only one straight line perpendicular to the known straight line (correct answer). B. build a shortest road between two villages, in which the mathematical principle is: the shortest line segment between two points. C. It takes two nails to fix a batten on the wall. The mathematical principle is that two points determine a straight line. D. To build the shortest road from the freight station to the expressway, the mathematical principle is that the vertical line segment is the shortest among all the line segments connecting a point outside the straight line and points on the straight line. 7.3. China is the first country to use positive numbers and negative numbers to represent quantities with opposite meanings, and to perform negative operation. If zero 10℃ is recorded as+10℃, then-10℃ can be written as () [multiple choice] * A. 10℃ B.0℃ C.- 10℃ (. The ordinate of the point on the axis is () [multiple choice] *A. Then, the corresponding values are () [multiple choice] * a, 1, 2B, 1, 5C, 5, 1 (correct answer) d, 2,41. A tree broke 5 meters from the ground, and the top of the tree fell at 65438 from the root.

A. 17 (correct answer) B.17.5c.18d.2011,4. (Tianjin, 2020, 1, 5 points) Set complete set U = {-3. UB)= () [multiple choice questions] * A. {-3,3 3} B. {0 0,2} C. {-1, 1} (correct answer) D. {-3,2,1,65438. A3 = A9c。 (﹣ 2a) 2 = ﹣ 4a2d。 (AB) 2 = Ab2 13。 Among the following angles, () [multiple choice question] * A. 1200 B.- 13. (2) The bisector of the internal angle of the isosceles triangle coincides with the height of the opposite side of this angle; (3) The areas of two isosceles triangles with equal vertex angles are equal; (4) One side of an isosceles triangle cannot be twice as big as the other side. The correct number is (). [multiple choice questions] *A. 1 (correct answer) B. 2 C. 3 D. 4 15. The following statement is correct: () [multiple choice questions] * A. Any straight line has an inclination angle (. The greater the inclination of the line, the greater the slope D. If the line is parallel to the X axis, the slope does not exist16,4. Given point P (-4, 1) in the second quadrant, the distance from point p to the x axis is () [multiple choice] * A. 1 (correct answer) b.4c.-3d. Point n is the midpoint of DB. If AB = A and Mn = B, the length of the line segment CD is () [multiple choice] * A.2b-A (correct answer) b.2 (a-b) c.a-bd. (A+B) D.6544. The antonyms are () [multiple choice questions] * A. (+ 1) and +(+ 1) B. (- 1) and +(- 1).

A.49B.42 (correct answer) C.2 1D.2020, 15. If m/n is less than 0, the point P(m, n) is () [multiple choice] * A. Second quadrant B. Third quadrant C. Fourth quadrant D. ) [multiple choice questions] *AA. 3B。 3C。 -9D。 9 (correct answer) 22, 5. If a root of the quadratic equation (a- 1)x2+x+a2- 1=0 about x is 0, then the value of a is () [multiple choice 0 and cos α >; 0, then the terminal edge of angle α is in () [multiple choice] * A. The first quadrant B. The second quadrant C. The third quadrant D. The fourth quadrant (correct answer) 24, and the solution of ABCD x+2 = 3 is () [multiple choice] *A. x= 1 (correct answer) b.x = 1), and the coordinates of A 1 point are (4,2) after translation in a certain direction, then the coordinates of C 1 point are () [multiple choice] *A, (2,3 3) b, (2,4) (correct answer) c and (3). -10 (correct answer) D.2027, 13. The solution set of inequality x+3 > 5 is () [multiple choice] * a.x > 65438+. If the distance between the centers of two circles is 10㎝, then the positional relationship between the two circles is () [multiple choice questions] * A. inscribed B. intersected C. circumscribed D. circumscribed (correct answer) 29, 7. Move the point to the point. The correct translation method is () [multiple-choice question] * A. First move 3 units to the left.

30, 12. Among the following equations, the one that belongs to the quadratic equation is () [multiple choice] *A. x2+3xy=4B. x+y=5C。 X2=6 (correct answer) D. 2x+3=0.

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Each courseware exercises 75 pages in the second semester of Shanghai's third grade mathematics.

1, 30 is () [multiple choice] *

A, the first quadrant (correct answer)

B, the first quadrant

C, the third quadrant

D, the fourth quadrant

2, 2 1. known set A = {x |-2m}, b = {x | m+1≤ x ≤ 2m-1} ≦? If A∩B=B, the range of real number m is _ _. [Multiple choice questions] *

A 2≤x≤3 (correct answer)