How many zeros are there at the end of the factorial of 100

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• 1. How many zeros are there at the end of the factorial of 35? 35*34*33…… *3 * 2 * 1 the answer is 8,
• 2. How many consecutive zeros are there at the end of the factorial in 2013?
• 3. How many zeros are there at the end of the factorial of 25?
• 4. Why is 0 factorial 1,1 factorial 1,2 factorial 2?
• 5. The reason why the factorial of 0 is 1 In my opinion, it is inappropriate for some people to deduce 0! = 1 by using the factorial recurrence formula The premise of recurrence formula n! = n * (n-1)! Is n > 1, so it is wrong to substitute 1 to get 0! = 1 Factorial is defined as n! = 1 * 2 * 3 *. * n or n! = n *. * 3 * 2 * 1, starting from or ending at 1 So 1! = 1 * 1 and not equal to 1 * 0! =In the permutation formula, P = n! / (m-n)! In order to make the equation hold when m = n, the denominator cannot be 0, so 0! = 1 is specified. Moreover, we know that there is only one way to take n elements from n elements, so it can only be specified equal to 1, not equal to 2, 3 The last sentence is wrong. There are n! Ways to take n elements from n non primes, so p = n, so 0! = 1 cannot be equal to 2,3
• 6. How many zeros are there at the end of the factorial of 100?
• 7. 24 points of 9 5 7 5 (factorial)
• 8. On factorial If (2n)! = 2x4x6x Why not just write (2n)!, these two are not the same? Or n!
• 9. The factorial of minus one? It's when I solve the problem, that means I'm wrong,
• 10. It is required to define a function named mysum with a return value of double type. Its function is to find the sum of the number of two double types 　　A) mysum(double a,b) 　　{ return (a+b); } 　　B) mysum(double a,double b) 　　{ return a+b; } 　　C) double mysum(int a,intb); 　　{return a+b; } 　　D) double mysum(double a,double b) 　　{ retrun (a+b); } What is the correct answer and why? I see. I didn't see the title "finding the sum of two double type numbers". Now the question is what type is the return value of B? Do you have to write the brackets of return (a + b)? C linguistics is not good, there are many fuzzy places
• 11. If a, B and C are three digits of a three digit number, and a ≤ B ≤ C, what is the maximum value of | A-B | + | B-C | + | C-A |?
• 12. If A.B.C is a three digit number of hundred, ten and one, and a ≤ B ≤ C, then the maximum value of | A-B | + | B-C | + | C-A |,
• 13. Let a, B and C be a three digit number of hundred, ten and one respectively, and a ≤ B ≤ C, then the maximum value that | A-B | + | B-C | + | C-A | can obtain is______ ．
• 14. a. B, C are three digit hundreds, tens and ones, and a Who can help me? My wealth is zero
• 15. For a three digit number, a hundred digit number is a, a ten digit number is B, and a single digit number is C, and a > C, exchange the position of a hundred digit number and a single digit number to get a new three digit number, please explain: The difference between the original three digits and the new three digits must be a multiple of 99
• 16. Let's work out a math problem for me with a formula A is 5 / 21 of B and C is 4 / 5 of A. A, B and C donate 310 to each of them. How much do they donate? Write down the formula
• 17. Limit LIM (sinx-x) / x ^ 3 = LIM (- x ^ 3 / 6 / x ^ 3) = - 1 / 6, where X - > 0 - how to deduce these two steps? Principle and explanation Limit LIM (sinx-x) / x ^ 3 = LIM (- x ^ 3 / 6 / x ^ 3) = - 1 / 6, where X - > 0 - how to deduce these two steps? Principle and explanation X ^ 3 is the third power of X
• 18. Is LIM (x - > 4) (x ^ 2-4x) / (x ^ 2-3x-4) suitable to use the lobita theorem? What is applicable and what is not. Can't it be used except those two types?
• 19. Limx - > ∞ arctan (√ x2 + 2x-x) how to use the continuity of function to find the limit and kneel down to find the answer It's the square of the root x plus 2x, and then minus X.
• 20. Find the left and right limit, and determine whether the limit of function at this point exists, f (x) = arctan (1 / x), x = 0