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Find the rate of convergence of the sequence lim h→0 1−eh h = −1

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Final answer:

The rate of convergence of the sequence (1 - e^h) / h as h approaches 0 is found by applying L'Hôpital's Rule, resulting in the limit equalling -1.

Step-by-step explanation:

The question asks us to find the rate of convergence of the sequence as h approaches 0 for the expression (1 - eh) / h. To address this, we'll look at the limit.

When evaluating the limit of (1 - eh) / h as h approaches 0, we can use L'Hôpital's Rule, which states that if the limit results in an indeterminate form such as 0/0, we can take the derivative of the numerator and the derivative of the denominator and then take the limit of that fraction.

Taking the derivative of the numerator, we have -eh, and the derivative of the denominator is 1. The limit thus becomes:

\[\lim_{h \to 0} \frac{-e^h}{1} = -1\]

This confirms that the original limit of (1 - eh) / h as h approaches 0 is indeed -1, showing the sequence converges to -1 at a rate that can be referred to as 'fast' since the convergence is reached immediately upon evaluation of the limit.

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