Arc Length in Parametric Form

Rarely Tested

Arc Length in Parametric Form

For:

$$x=x(t),\quad y=y(t)$$

from $$t=a$$ to $$t=b$$:

$$L=\int_a^b\sqrt{\left(\frac{dx}{dt}\right)^2+\left(\frac{dy}{dt}\right)^2}\,dt$$

Usage

- Used when the curve is represented parametrically.

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