![](data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 72 71" width="72"></svg>)
Known inequality 1 / N + 1 / N + 1 + 1 / N + 2 + 1 / 2n + 1 ＜ 11a / 3 + 11 / 6A holds for any n ∈ n *. Find the value range of real number a
RELATED INFORMATIONS
- 1. It is known that for any natural number n, the inequality (nlga0) holds, then the value range of a is It is known that for any natural number n, the inequality NLGA ＜ (n + 1) LGA ^ n (a > 0) holds, then the value range of a is () A 0＜a＜1 B a＞1 C 0 < a < 1 / 2 d 0 < a < 1 / 2 or a > 1 Why D
- 2. If inequality 1 / (n + 1) + 1 / (n + 2) + +If 1 / (n + 2n) > m / 2100 holds for all natural numbers n greater than 1, then the maximum value of integer m is
- 3. According to the natural number from small to large as the standard order, find the following permutation of reverse order number 25 （3n-1）3 6… （3(n-1））（3n)
- 4. What is a prime number? Is it the same as a prime number? And is 0 a natural number? I've been working on the topic these days
- 5. The two adjacent natural numbers (except 0) of the judgment question (1) must be prime numbers. (2) two different prime numbers must be coprime numbers. (3) two kinds of numbers that become coprime numbers. At least one number is prime
- 6. In the equation 3x = 10 + a about X, a is a negative integer, and the solution of this equation is a natural number. Try to find the value of a and the solution of this equation
- 7. The object is subjected to three forces, two of which are 5N and 7n respectively. The maximum value of the resultant force of these three forces is 21n, then the size of the third force is 5N______ N. The minimum of the resultant of the three forces______ N．
- 8. If x of 9 is a true fraction and X of 7 is a false fraction, then x is a natural number=
- 9. A is a natural number greater than 0. When a (), a of 5 is a true fraction
- 10. If there are 3N items in the equal ratio sequence {an}, the sum of the first 2n items is 100 and the sum of the last 2n items is 200, then how much is the sum of the middle n items in the equal ratio sequence
- 11. Three out of seven × [] = 9 × [] = four out of five △ [] = a × [] 0
- 12. It is known that a and B are non-zero natural numbers, and a + B = 100. What is the maximum and minimum product of a and B?
- 13. a. 1 / a △ 2 / 7 = 1 / b × 3 / 5 = 1 / C, the following correct is () 1. A ＞ B ＞ C 2. A ＞ C ＞ B 3. B ＞ C ＞ a
- 14. A is a non-zero natural number. In the following formulas, the smallest number is () A.A × 2 / 5 B.A × 7 / 5 C.A △ 1
- 15. Given that 1 / 4 > 2 / 4 > 1 / 5, a is a non-zero natural number, then a is ()
- 16. The sum of 15 non-zero natural numbers is 76, and one of them must be greater than or equal to 6. Why?
- 17. The numerator of a false fraction is 55. After transforming the false fraction into a band fraction, the integer part, numerator and denominator are adjacent natural numbers, and the band fraction is 55______ ．
- 18. The numerator of a false fraction is 47, which is transformed into three continuous natural numbers with fractions, numerator denominator and integer
- 19. Can other non-zero natural numbers be converted into pseudo fractions with denominators of 1, 2, 3?
- 20. 8 / X (x is a non-zero natural number), which is a true fraction; when x is (), it is the smallest false fraction; when x is greater than (), it is a true fraction; when x is greater than (), it is the smallest false fraction; When x is () Yes, it is the smallest composite number