Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN: 9781285741550
Author: James Stewart
Publisher: Cengage Learning
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Using the Direct Comparison Test or the Limit Comparison Test determine if the series converges or diverges.

**Transcription for Educational Website:**

Equation 23: Evaluate the infinite series 

\[
\sum_{k=1}^{\infty} \frac{\sin(1/k)}{k^2}
\]

This mathematical expression represents an infinite series where the variable \( k \) starts at 1 and increments by 1 for each term towards infinity. The function inside the series is defined by the ratio of \(\sin(1/k)\) to \(k^2\).

- **\(\sin(1/k)\)**: This part of the expression applies the sine function to the reciprocal of \( k \). As \( k \) becomes very large, \( \sin(1/k) \) approaches \(\sin(0)\), which is 0.

- **\(k^2\)**: This denotes that each term in the denominator is the square of the current value of \( k \).

The series combines these elements and sums them as \( k \) increases towards infinity. This type of series is often analyzed to determine its convergence or divergence.
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Transcribed Image Text:**Transcription for Educational Website:** Equation 23: Evaluate the infinite series \[ \sum_{k=1}^{\infty} \frac{\sin(1/k)}{k^2} \] This mathematical expression represents an infinite series where the variable \( k \) starts at 1 and increments by 1 for each term towards infinity. The function inside the series is defined by the ratio of \(\sin(1/k)\) to \(k^2\). - **\(\sin(1/k)\)**: This part of the expression applies the sine function to the reciprocal of \( k \). As \( k \) becomes very large, \( \sin(1/k) \) approaches \(\sin(0)\), which is 0. - **\(k^2\)**: This denotes that each term in the denominator is the square of the current value of \( k \). The series combines these elements and sums them as \( k \) increases towards infinity. This type of series is often analyzed to determine its convergence or divergence.
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