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Determine a region whose area is equal to the given limit. Do not evaluate the limit.

$ \displaystyle \lim_{n \to \infty} \sum_{i = 1}^{n} \frac{\pi}{4n} \tan{\frac{i \pi}{4n}} $

$\int_{0}^{\pi / 4}+\operatorname{an} x d x$

01:22

Frank L.

Calculus 1 / AB

Chapter 5

Integrals

Section 1

Areas and Distances

Integration

Harvey Mudd College

Baylor University

University of Nottingham

Idaho State University

Lectures

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okay. We know the formula for Delta X er change in Axis B minus a divide by an Given the limit that the problems given us, we know Delta axes pi over four on and a zero. Therefore, if Delta Axe is be minus a over and then it's and demonized over an is equivalent to pi over four end, then we actually condone drive a value for B we get B is equivalent to pi over four. Therefore, what we know is that we end up with the same limit that if the integral from zero to fought for of tan of axe DX mean the sum represents the area under the curve. Reichel's 10 of X and above the X axis in the interval, x from 0 to 4 pi over four.

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