Final answer:
To find the length of the ellipse's arc, you can use the parametric equations x = a cos(θ) and y = b sin(θ), and then evaluate the integral for the arc length using these parametric equations.
Step-by-step explanation:
To find the length of the ellipse's arc, you can use the formula for the arc length of a parametric curve. If you parameterize the ellipse with the angle θ, the parametric equations are:
x = a cos(θ)
y = b sin(θ)
You can then evaluate the integral for the arc length using these parametric equations. Additionally, you can choose a point (a, b) on the ellipse to evaluate the integral.