Put 12 pieces in 8 squares so that the sum of up, down, left and right equals 5 Eight squares means that a square is divided into nine parts on average, the middle one is not needed, and only the other eight squares are taken
2 1 2
1 1
2 1 2
RELATED INFORMATIONS
- 1. Given the function f (x) = ax & # 178; + BX + C, the image passes through points a (1,0) and B (- 1,0), and B & # 178; - 4A
- 2. As shown in the figure, triangle ABC is a right triangle, quadrilateral aefd is a square, BF is 77cm, FC is 52cm, find the area sum of a and B When the picture was finished, we couldn't get it out. Angle a is a right angle, a is a triangle, CDE and B is Feb,
- 3. The edge lengths of tetrahedral a-bcd are a, e and F are the midpoint of AD and BC respectively. The cosine value of the angle formed by the straight line AF of the different plane to CE is calculated
- 4. The area of a trapezoid is 96 square centimeters, the upper bottom is 6 centimeters, the lower bottom is 10 centimeters, and the height is several centimeters
- 5. English translation Don't panic ,to firmly believe that we will all across the gap between them. Trust ,basred on the basis of honesty Once had ,love comes and left
- 6. Translation of some English phrases 1. During this week 2. Spend hundreds of years 3. Be busy enough 4. Know about / learn about 5. Join / join a club 6. Complain about 7. Don't get in / prevent 8. Ask for something from the back 9. Don't get in until
- 7. English translation 1: I believe you. I'm sure you'll do well. 2: I'm going to be a policeman after graduation. 3: she's a typical person. 4: are you interested in working abroad? 5: according to the facts I know, It's impossible for him to be guilty. He's done a lot of exercise to prevent him from getting fat. He's been trying to land on Mars for a few months
- 8. English translation 【1】I mean boys and girls,that kind of thing. 【2】So,you’ve noticed that. 【3】I get confused about stories which talk about boys and girls’problems.
- 9. English translation Succession planning Targeting high potentials Formal performance management Forced rankings Balanced Scorecard
- 10. English translation Reasonable use of resources; excessive waste of resources; form a strong contrast; develop new energy; non renewable resources,
- 11. The image of a quadratic function passes through three points ABC, the coordinate of point a is (- 1,0), the coordinate of point B is (4,0), and point C is on the positive half axis of Y axis And ab = OC (1) Find the coordinates of point C; (2) Find the analytic expression of the quadratic function and write out its axis of symmetry;
- 12. In the square ABCD, the angle pad = angle PDA = 15 degrees, proving that the triangle PBC is an equilateral triangle
- 13. How to combine two line segments in Geometer's Sketchpad? I made two intersecting line segments, but found that only one line segment can be moved at a time. How can I combine them into a whole
- 14. Given the function f (x) = 4x * 2 -- KX 8, if the function is an even function on R, find the value of the real number K
- 15. Given that f (x) = (m-1) x2 + MX + 1 is an even function, then the sum of the maximum and minimum of F (x) in the interval [- 2,1] is equal to______ .
- 16. Let the joint probability density function of two-dimensional random variables (x, y) be: F (x, y) = {2; 0 < y < x < 10; others (1) Finding the edge density functions FX (x) and FY (y) of X and Y (2) Ask if x and y are independent of each other
- 17. Given that A1 = 1 in the sequence {an}, the point (an, an + 1) is on the image of function y = 3x + 2 (n ∈ n *) (I) prove that the sequence {an + 1} is an equal ratio sequence; (II) find the sum of the first n terms of the sequence {an}
- 18. If the solution set of inequality (A-1) x < A-1 about X is x > 1, then the value range of a is () A. a>1B. a≥1C. a<1D. a≤1
- 19. If point (x, y) satisfies X & # 178; + Y & # 178; - 6x-4y + 12 = 0, then the maximum and minimum values of X / y are? The maximum and minimum values of X & # 178; + Y & # 178; are? Respectively, and the maximum and minimum values of X + y are? Respectively?
- 20. Given the polynomial x squared - 2x + 3, when x =, its maximum value is