The famous Leibniz triangle in the world, as shown in the figure, is the number in the eleventh row from the right to the third position? Fig.1/1 1/2 1/2 1/3 1/6 1/3 1/4 1/12 1/12 1/4 1/5 1/20 1/30 1/20 1/5 1/6 1/30 1/60 1/60 1/30 1/6 1/7 1/42 1/105 1/140 1/105 1/42 1/7 . Find the number in the eleventh row from the right to the third position

The last number in line 11 is 1 / 11, the last number in line 10 is 1 / 10, and the last number in line 9 is 1 / 9, so the penultimate number in line 10 is 1 / 9-1 / 10 = 1 / 90, and the penultimate number in line 11 is 1 / 10-1 / 11 = 1 / 110?

RELATED INFORMATIONS

1. What is the number in the third position from the left of line 40 of the Leibniz triangle? Hope to be able to give reasons
2. What is the third number on the left of the tenth line of the Leibniz triangle?
3. What is the number of line 8 of the Leibniz triangle from the third position on the left?
4. Fill in the numbers according to the rules: 89, 23, 12______ 、932、______ ．
5. 1. (7 + 4 √ 3) (2 - √ 3) ^ 2 2. √ (1 / 25) ^ 2 - (2 / 5) ^ 2 3. √ 80 * √ 5 - √ 50 * √ 2 4. √ 4 / 3 ÷ 3 / 2 * √ 9 / 8
6. (1) 14-50% of 9 / 2-5 / 1 (2) 7 × 80% - 1 × 80% - 0.25 × 80% of 8 / 8
7. 5 of 6.5-2 =? 3 of 7 times 2.1 equals? 3-1 and 5 of 8 equals? 80% + 1 of 5 equals? 2 of 3-50% equals? 4 of 7 divided by 80%?
8. (1) how many meters is 15% more than 36 meters? (2) how many meters is 15% less than 36 meters? (3) how many meters is one fourth more than 36 meters? (4) How many meters is one fourth less than 36 meters?
9. 4 / 5 of a number is 2 / 3 of 36. How much is this
10. 3 / 5 of a number is 9 / 10. What's the number?
11. The famous Leibniz triangle in the world is shown in the figure. The number on the third position from the left is () A. 1132B. 1360C. 1495D. 1660
12. -1 2 - 3 4 - 5 6 - 7 8 - 9 10 - 11 12 - 13 14 - 15 16 according to this rule, number 2010 from the left should be in several rows and columns
13. Find the rules: first line: 1, second line: 2, 3, third line: 4, 5, 6 According to the above arrangement The third number from left to right in line n (n > = 3) is
14. The numbers of 1, - 1 / 2,1 / 3, - 1 / 4,1 / 5, - 1 / 6 are arranged as follows according to certain rules: the first line is 1, the second line is - 1 / 2 1 / 3, the third line is - 1 / 4 1 / 5 - 1/ 0 - 14 days and 23 hours to the end of the problem The numbers 1, - 1 / 2,1 / 3, - 1 / 4,1 / 5, - 1 / 6 are arranged as follows according to certain rules, First line 1 Second line - 1 / 2 1 / 3 The third line - 1 / 4 1 / 5 - 1 / 6 The fourth line 1 / 7 - 1 / 8 1 / 9 - 1 / 10 The fifth line 1 / 11 - 1 / 12 1 / 12 - 1 / 14 1 / 15 ………… ……………… ………… So, can you write seven numbers from left to right on line 199? Be more specific. I'll hand it in tomorrow
15. The first line: 1, the second line: 2, 3, the third line: 4, 5, 6, the fourth line: 7, 8, 9, 10. According to the law, what's the last number in line 10000? The teacher asked us: the first line: 1, the second line: 2, 3, the third line: 4, 5, 6, the fourth line: 7, 8, 9, 10. According to the law, what is the last number in the 10000 line?
16. How many integers from 1 to 2010 are not divisible by 2 or 3?
17. From 1, 2 How many numbers can be taken out of 2010 positive integers, so that the sum of any three numbers can be divided by 33?
18. From 1, 2 How many numbers can be taken out of 2010 positive integers, so that the sum of any three numbers can be divided by 33?
19. From 1, 2 How many numbers can be taken out of 2010 positive integers, so that the sum of any three numbers can be divided by 33?
20. From 1, 2 How many numbers can be taken out of 2010 positive integers, so that the sum of any three numbers can be divided by 33?