Prove 1000th Progression of an Algebraic Series is Less than 1/79

In summary, the proof of the 1000th progression of an algebraic series being less than 1/79 involves using mathematical induction, where the base case (n=1) is proved and then it is shown that if it is true for any arbitrary integer k, then it must also be true for the next integer (k+1). This proof is important in mathematics and can be applied in various areas, as it showcases the power of mathematical induction and helps understand the behavior of algebraic series. An algebraic series is a sequence of numbers that follow a specific pattern or rule, where each term is obtained by performing a mathematical operation on the previous term. Mathematical induction is a proof technique used to prove statements about all positive integers
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anemone
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Prove $\dfrac{1}{3}\cdot\dfrac{4}{6}\cdot\dfrac{7}{9}\cdots\dfrac{1000}{1002}\lt \dfrac{1}{79}$
 
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anemone said:
Prove $\dfrac{1}{3}\cdot\dfrac{4}{6}\cdot\dfrac{7}{9}\cdots\dfrac{1000}{1002}\lt \dfrac{1}{79}$

Subtle hint:
Use two other product expressions to make comparison...
 
  • #3
anemone said:
Prove $\dfrac{1}{3}\cdot\dfrac{4}{6}\cdot\dfrac{7}{9}\cdots\dfrac{1000}{1002}\lt \dfrac{1}{79}$

Solution of other:

Let

$X=\dfrac{1}{3}\cdot\dfrac{4}{6}\cdot\dfrac{7}{9}\cdots\dfrac{1000}{1002}$

$Y=\dfrac{2}{4}\cdot\dfrac{5}{7}\cdot\dfrac{8}{10}\cdots\dfrac{1001}{1003}$

$Z=\dfrac{3}{5}\cdot\dfrac{6}{8}\cdot\dfrac{9}{11}\cdots\dfrac{1002}{1004}$

Note that $X\lt Y\lt Z$, therefore we get $X^3\lt XYZ=\dfrac{1\cdot 2}{1003\cdot 1004}=\dfrac{1}{503506}\lt \dfrac{1}{493039(=79^3)}$.

Thus we have proved that $X=\dfrac{1}{3}\cdot\dfrac{4}{6}\cdot\dfrac{7}{9}\cdots\dfrac{1000}{1002}\lt \dfrac{1}{79}$.
 

FAQ: Prove 1000th Progression of an Algebraic Series is Less than 1/79

1. How do you prove the 1000th progression of an algebraic series is less than 1/79?

The proof involves using mathematical induction, where we first prove that the statement is true for the base case (n=1) and then show that if it is true for any arbitrary integer k, then it must also be true for the next integer (k+1). By repeating this process, we can prove that the statement holds for all positive integers n, including n=1000.

2. What is an algebraic series?

An algebraic series is a sequence of numbers that follow a specific pattern or rule. Each term in the series is obtained by performing a mathematical operation on the previous term. For example, the sequence 1, 3, 5, 7, 9 is an algebraic series where each term is obtained by adding 2 to the previous term.

3. Why is it important to prove that the 1000th progression of an algebraic series is less than 1/79?

Proving this statement can have applications in various areas of mathematics, such as number theory and analysis. It demonstrates the power of mathematical induction as a proof technique and also helps us understand the behavior of algebraic series.

4. What is mathematical induction?

Mathematical induction is a proof technique used to prove statements about all positive integers. It involves proving a base case (usually n=1) and showing that if the statement is true for any arbitrary integer k, then it must also be true for the next integer (k+1). By repeating this process, we can prove that the statement holds for all positive integers n.

5. Can this statement be generalized to other algebraic series?

Yes, the proof for the 1000th progression of an algebraic series being less than 1/79 can be extended to other algebraic series. However, the specific values and operations may differ for each series, so the proof would need to be adapted accordingly.

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