- #1

nate808

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-nate808

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- Thread starter nate808
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In summary, the conversation is about a problem involving arclength and finding the arclength for r=2-2sinx. One person suggests factoring out the 8 and taking it outside the integral sign, while another person integrates 8-8sinx dx and gets 8cosx+8x+C. The person apologizes for not realizing it was the square root of that and thanks the other person for catching that mistake.

- #1

nate808

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-nate808

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- #2

prace

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I am not 100% sure, but can't you factor out the 8 and then take that outside the integral sign which would leave you with the integral of 1-sinx dx?, or 8(integral of (1-sinx)dx).

Last edited:

- #3

vsage

prace said:

I don't think this will produce anything productive. Judging by the answer my 89 spewed out, it's a difficult substitution and/or trig identity problem. Wish I could help!

- #4

prace

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Arclength in polar coordinates is a measure of the distance along a curve in polar coordinates. It is similar to the concept of arclength in Cartesian coordinates, but takes into account the unique polar coordinate system.

The formula for calculating arclength in polar coordinates is ∫√(r² + (dr/dθ)²)dθ, where r is the radius and dr/dθ is the derivative of r with respect to θ.

The main difference is the coordinate system used. In polar coordinates, the distance is measured from the origin along a curved line, whereas in Cartesian coordinates, it is measured along a straight line.

Arclength in polar coordinates is important in many applications of polar coordinates, such as in physics, engineering, and architecture. It allows for accurate measurement and calculation of distances in curved paths.

Arclength in polar coordinates is used in a variety of real-world scenarios, such as determining the length of a curved road or track, calculating the distance traveled by a planet in its orbit, and finding the length of a coastline. It also has practical applications in fields such as computer graphics and navigation systems.

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