Prove that for any positive integer n, there is an even positive integer k so that
1/n + 2 ≤ 1/k − 1 < 1/n
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
(a) Suppose you wish to use the Principle of Mathematical Induction to prove that n(n+1) 1+ 2+ ... +n= - for any positive integer n. i) Write P(1). Write P(6. Write P(k) for any positive integer k. Write P(k+1) for any positive integer k. Use the Principle of Mathematical Induction to prove that P(n) is true for all positive integer n. (b) Suppose that function f is defined recursively by f(0) = 3 f(n+1)=2f (n)+3 Find f(1), f (2), f...
1. Formalize the following argument by using the given predicates and then rewriting the argument as a numbered sequence of statements. Identify each statement as either a premise, or a conclusion that follows according to a rule of inference from previous statements. In that case, state the rule of inference and refer by number to the previous statements that the rule of inference used.Lions hunt antelopes. Ramses is a lion. Ramses does not hunt Sylvester. Therefore, Sylvester is not an...
For Exercises 1-15, prove or disprove the given statement. 1. The product of any three consecutive integers is even. 2. The sum of any three consecutive integers is even. 3. The product of an integer and its square is even. 4. The sum of an integer and its cube is even. 5. Any positive integer can be written as the sum of the squares of two integers. 6. For a positive integer 7. For every prime number n, n +...
1 point Prove the following statement: If n2 is even, then n is even. Order each of the following sentences so that they form a logical proof. Proof by Contrapositive: Choose from these sentences: Your Proof: Suppose n is odd. Then by definitionn 2k +1 for some integer k Required to show if n is not even (odd), then n is not even (odd). Thus n2(2k1)2. n24k2 4k1. 22(22+2k) +1 Thus n2 (an integer) +1 and by definition is odd....
Discrete math show all work please Use mathematical induction to prove that the statements are true for every positive integer n. n[xn - (x - 2)] 1 + [x2 - (x - 1)] + [x:3 - (x - 1)] + ... + x n - (x - 1)] = 2 where x is any integer = 1
8. (a) Prove that if p and q are prime numbers then p2 + pq is not a perfect square. (b) Prove that, for every integer a and every prime p, if p | a then ged(a,pb) = god(a,b). Is the converse of this statement true? Explain why or why not. (c) Prove that, for every non-zero integer n, the sum of all (positive or negative) divisors of n is equal to zero. 9. Let a and b be integers...
please answer questions #7-13 7. Use a direct proof to show every odd integer is the difference of two squares. [Hint: Find the difference of squares ofk+1 and k where k is a positive integer. Prove or disprove that the products of two irrational numbers is irrational. Use proof by contraposition to show that ifx ty 22 where x and y are real numbers then x 21ory 21 8. 9. 10. Prove that if n is an integer and 3n...
Can someone answer number 4 for me? (60 pt., 12 pt. each) Prove each of the following statements using induction. For each statement, answer the following questions. a. (2 pt.) Complete the basis step of the proof b. (2 pt.) What is the inductive hypothesis? c. (2 pt.) What do you need to show in the inductive step of the proof? d. (6 pt.) Complete the inductive step of the proof. 1. Prove that Σ(-1). 2"+1-2-1) for any nonnegative integer...
UUIDOR Quiz 2 - Ma Consider the following theorem. Theorem: The sum of any even integer and any odd integer is odd. Six of the sentences in the following scrambled list can be used to prove the theorem. By definition of even and odd, there are integers rands such that m = 2r and n = 2s + 1. By substitution and algebra, m + n = 2r + 25 + 1) = 2(r + s) + 1. Suppose m...
In the following problem, we will work through a proof of an important theorem of arithmetic. Your job will be to read the proof carefully and answer some questions about the argument. Theorem (The Division Algorithm). For any integer n ≥ 0, and for any positive integer m, there exist integers d and r such that n = dm + r and 0 ≤ r < m. Proof: (By strong induction on the variable n.) Let m be an arbitrary...