Write an expression that represents the arc length of the


Question: 1. Write an expression that represents the arc length of the concave-down portion of the graph of f(x) = x4 -8x3 + 18x2 + 3x + 7. Do not simplify or evaluate the answer.

2. With x and b in meters, a chain hangs in the shape of the catenary cosh

x = (1/2)(ex + e-x) for -b ≤ x ≤ b

If the chain is 10 meters long, how far apart are its ends?

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Mathematics: Write an expression that represents the arc length of the
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