Recent content by nastygoalie89
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
I just don't see how to get from k to (k+1)k^k- nastygoalie89
- Post #20
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
how do I get to k(k+1)k ≤ (k+1)k+1 from k<k+1, without multiplying (k+1)^k?- nastygoalie89
- Post #18
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
i think i have it. k! < k^k, multiply by (k+1) k!(k+1)= (k+1)! < (k+1)k^k and since k<= k+1, multiply by (k+1)^k this gives us (k+1)k^k < (k+1)^(k+1) we proved (k+1)! < (k+1)k^k < (k+1)^(k+1) therefore, (k+1)! < (k+1)^(k+1)- nastygoalie89
- Post #14
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
ah i have no idea how to prove that without starting with 'q'- nastygoalie89
- Post #12
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
1. k!< k^k 2. multiply by (k+1) to get k!(k+1) <= (k+1)k^k 3. (k+1)k^k <= (k+1)^(k+1) multiply by k to get (k+1)k^(k+1)<=(k+1)k^(k+1) therefore, k!(k+1) <= (k+1)k^(k+1), divide by (k+1) k! <= (k+1)^k- nastygoalie89
- Post #10
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
1. k!< k^k 2. multiply by (k+1) to get k!(k+1) < (k+1)k^k 3. k!(k+1) < (k+1)k^k < (k+1)^(k+1) 4. therefore, k!(k+1) < (k+1)^(k+1) I feel I am begging the question at step 3 here- nastygoalie89
- Post #8
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
how do you get (k+1) k^k? isn't it (k+1)(k+1)^k?- nastygoalie89
- Post #6
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
so it would be: k!<=k^k multiply by (k+1) on both sides (k+1)! = k!(k+1)<= (k+1)^k (k+1) since k is an integer k+1 is an integer am I closer?- nastygoalie89
- Post #3
- Forum: Precalculus Mathematics Homework Help
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Is This Mathematical Induction Proof Correct for Factorials and Exponents?
Homework Statement For all integers n=>1, n! <= n^n Homework Equations The Attempt at a Solution Let p(n) be the inequality n! <= n^n, for all integers n=>1. Base case: p(1) = 1! <=1^1 1<=1 check IHOP: Assume p(k), that is assume k!<=k^k for some integer k. Show p(k+1)...- nastygoalie89
- Thread
- Replies: 19
- Forum: Precalculus Mathematics Homework Help
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Induction proof of an inequality
so it would be k!(k+1) <= (k+1)^k + (k+1) ?- nastygoalie89
- Post #3
- Forum: Precalculus Mathematics Homework Help
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Induction proof of an inequality
Homework Statement for all integers n>=1, n! <= n^n Homework Equations The Attempt at a Solution Base case: (1)! <= (1)^(1) 1=1 check Inductive hypothesis: suppose k!<=k^k P(k+1): (k+1)! <= (k+1)^(k+1) From here on out I get very confused. Any help would be...- nastygoalie89
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- Induction Inequality Proof
- Replies: 3
- Forum: Precalculus Mathematics Homework Help
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Proving Induction Inequality: 5^n+9 < 6^n for n>=2
Homework Statement 5^n + 9 < 6^n for all integers n>=2. Homework Equations The Attempt at a Solution Induction proof. Base Case: 5^(2) + 9 < 6^(2) 34<36 P(k): 5^k + 9 < 6^k P(k+1): 5^(k+1) + 9 < 6^(k+1) how do i prove p(k) can equal p(k+1)?- nastygoalie89
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- Induction Inequality
- Replies: 1
- Forum: Precalculus Mathematics Homework Help
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Solving Induction Problems: Making it Look Like You Want It To
Homework Statement I understand the process of induction and how it works, but when it wittles down I have a hard time, as my teacher says "making the problem look like you want it to." It's just algebraic stuff showing P(k+1) is true Homework Equations 1. (4 k+1-1) + 4k+1 is equivalent...- nastygoalie89
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- Induction
- Replies: 1
- Forum: Precalculus Mathematics Homework Help
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Proof or counterexaample of Floor 7 Ceiling
Homework Statement For all real numbers x and y, ceiling of x,y = ceiling of x times ceiling of y For all odd integers n, ceiling of n/2 = (n+1)/2 Homework Equations definition floor: floor of x = n n<or equal to x < n+1 definition ceiling: ceiling of x=n n-1 < x...- nastygoalie89
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- Proof
- Replies: 2
- Forum: Precalculus Mathematics Homework Help
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Simple Number Theory Proof, Again
Alright, having problems with this question too. It seems to be the same type of number theory problem, which is the problem. Homework Statement Prove "The square of any integer has the form 4k or 4k+1 for some integer k. Homework Equations definition of even= 2k definition of...- nastygoalie89
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- Number theory Proof Theory
- Replies: 4
- Forum: Precalculus Mathematics Homework Help