Prove that the following premise 4. Prove the following: (a) Prove that n is even if...
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....
Explain your answer whenever possible: 4. Prove the following theorem: n is even if and only if n2 is even. 5. Prove: if m and n are even integers, then mn is a multiple of 4. 6. Prove: |xy| = |x||y|, where x and y are real numbers. (recall that |a| is the absolute value of a, equals (a) if a>0 and equals (–a) if a<0 )
Definition of Even: An integer n ∈ Z is even if there exists an integer q ∈ Z such that n = 2q. Definition of Odd: An integer n ∈ Z is odd if there exists an integer q ∈ Z such that n = 2q + 1. Use these definitions to prove only #5: 2. Prove that zero is even. 3. Prove that for every natural number n ∈ N, either n is even or n is odd. 4....
Using discrete mathematical proofs: a. Prove that, for an odd integer m and an even integer n, 2m + 3n is even. b. Give a proof by contradiction that 1 + 3√ 2 is irrational.
5. Prove that for n e Z, n is even, if and only if n2 is even. 6. Verify by induction that 3" > 2n? n>0.
(a) Prove that, for all natural numbers n, 2 + 2 · 2 2 + 3 · 2 3 + ... + n · 2 n = (n − 1)2n+1 + 2. (b) Prove that, for all natural numbers n, 3 + 2 · 3 2 + 3 · 3 3 + ... + n · 3 n = (2n − 1)3n+1 + 3 4 . (c) Prove that, for all natural numbers n, 1 2 + 42 + 72...
9. Prove the following argument, stating justification for each step below: Premise 1) p r Premise 2) Premise 3) 4) 5) 6)
By using a constructive method, prove that there is a positive integer n such that n! < 2n By using an exhaustive method, prove that for each n in [1.3], nk 2n. By using a direct method, prove that for every odd integer n, n2 is odd. By using a contrapositive method, prove that for every even integer n, n2 By using a constructive method, prove that there is a positive integer n such that n!
3. Prove, by indirect proof, that if n is an integer and 3n+ 3 is odd, then n is even. Show all your work. (4 marks) MacBook Pro ps lock Command option control option command 20t3 la
a) Prove that running time T(n)=n3+30n+1 is O(n3) [1 mark] b) Prove that running time T(n)=(n+30)(n+5) is O(n2) [1 mark] c) Count the number of primitive operation of algorithm unique1 on page 174 of textbook, give a big-Oh of this algorithm and prove it. [2 mark] d) Order the following function by asymptotic growth rate [2 mark] a. 4nlogn+2n b. 210 c. 3n+100logn d. n2+10n e. n3 f. nlogn