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The first step: take a natural number N1 = 5, calculate N1 + 1 to get A1; the second step: calculate the sum of all numbers of A1 to get N2, and calculate the square of N2 + 1 to get A2· Step 1: take a natural number N1 = 5, calculate the square + 1 of N1 to get A1; step 2: calculate the sum of all numbers of A1 to get N2, calculate the square + 1 of N2 to get A2. Step 2: calculate the sum of all numbers of A1 to get N2, calculate the square + 1 of N2 to get A2; step 3: calculate the sum of all numbers of A2 to get N3, and then calculate the square of N2 to get A3? Thanks for the detailed process. Thank you
If you try to calculate, you will know the rule: N1 = 5, A1 = N1 & # 178; + 1 = 26n2 = 2 + 6 = 8, A2 = N2 & # 178; + 1 = 65n3 = 6 + 5 = 11, A3 = N3 & # 178; + 1 = 122n4 = 1 + 2 + 2 = 5, A4 = N4 & # 178; + 1 = 26 We can see that this is a cycle of 3, 2011 = 3 × 670 + 1, so a2011 = A1 = 26
The difference between the reciprocal of two consecutive odd numbers is 2 / 143. What is the reciprocal of these two consecutive odd numbers?
1/11,1/13
The difference between the reciprocal of two consecutive odd numbers is 2399, and the sum of these two odd numbers is 2399______ ．
399 = 3 × 19 × 7 = 21 × 19; 21 + 19 = 40
The difference between the reciprocal of two natural numbers is 112___ 、___ ．
The product of the two natural numbers is 12 and the difference is 1. Only the product of 3 and 4 is 12 and the difference is 1. Therefore, the two natural numbers are 3 and 4; 13-14 = 4-312 = 112
RELATED INFORMATIONS
- 1. The difference between the reciprocal of two natural numbers is 1 / 12. What is the product of the two numbers
- 2. The sum of the reciprocal of two natural numbers is 12 / 7. What is the product of the two numbers? Wrong, 7 / 12
- 3. A. The difference between the reciprocal of two natural numbers B is 1 / 182. Find the sum of two natural numbers a and B
- 4. To find the law of a natural number, do the following operations: if it is an even number, divide it by 2; if it is an odd number, add 1. Do this until 1, and the operation stops. Find out how many numbers become 1 after 8 operations?
- 5. The following operations are performed on the natural number: if it is even, divide it by 2; if it is odd, subtract 1 until the result becomes 0. Then after four operations, there are ▁ numbers that make the result become 0, which are ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁
- 6. Ask some math questions (algebra) 1. There are three types of integers: positive integers, zero integers and negative integers. Non negative integers refer to positive integers__________________ The smallest positive integer is_____________ The smallest negative integer is________________ . 2. If the opposite number of a number is non negative, then the number must be negative______________ . 3. If the reciprocal of a number is - 1.5, then the opposite of the number is -________________ .
- 7. The sum of three continuous natural numbers is 153. What are the three natural numbers? 3Q
- 8. The sum of four continuous natural numbers equals 78, so what is the smallest of the four numbers? 30 25 18 Which is it`
- 9. The sum of three consecutive even numbers is 78, and the three even numbers are 78______ 、______ And______ ．
- 10. There are three continuous natural numbers, the largest one is a, and the smallest one is < >. The average of these three numbers is < >
- 11. The fractional unit of n of M (both M and N are non-zero natural numbers) is (). He has () such units
- 12. M is a natural number greater than 10, M + 2 is a multiple of 3, M + 3 is a multiple of 4, M + 4 is a multiple of 5, M + 5 is a multiple of 6, what is m?
- 13. If M and N are natural numbers and M is a multiple of N, then what is the maximum divisor of M and N?
- 14. How many squares are there in 1-200 natural numbers
- 15. It is stipulated that the "H operation" of positive integer n is: ① when n is odd, H = 3N + 13; ② when n is even, H = NX1 / 2x1 / 2 Where h is odd Q 7 after 2010 times of "H operation", how much is it equal to?
- 16. Let x ^ 2n = 3, find (1 / 3x ^ 3n) · [4 (x ^ 5) ^ n] Let x ^ 2n = 3, find (1 / 3x ^ 3n) ^ 3 · [4 (x ^ 5) ^ n]
- 17. In the sequence {an}, if the first n terms and Sn = 3n-2n ^ 2 (n belongs to n *), then an =? Second, what is the size relationship between Sn and Nan?
- 18. In triangle ABC, a = 2, B = 1, find the value range of angle B
- 19. In the known triangle ABC, BC = x, AC = 2, B = 45 degrees, if the triangle has two solutions, then the value range of X is? (2,2√2) Draw an angle of 45 ° with B as the vertex and BC = x on one side Take point C as the center of the circle, radius 2, draw a circle, because there are two solutions, so the circle should intersect with the other side, if there is no solution, it is separated, if there is a solution, it is tangent After you draw the picture, you can clearly see that the distance from point C to the other side (the distance from the center of the circle to the chord), that is, the height of the triangle ABC is less than the radius, that is, xcos 45 ° < 2 In addition, BC edge is larger than radius, that is, x > 2 two
- 20. In △ ABC, a = xcm, B = 2cm, B = 45 ° are known. If there are two solutions of triangle by using sine definite, then the value range of X is () A. 2＜x＜22B. 2＜x≤22C. x＞2D. x＜2