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Find the perimeter of the loop of the curve9aysquare =(x-2a) (x-5a)square
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Find the perimeter of the loop of the curve9aysquare =(x-2a) (x-5a)squ...
Perimeter of the Loop of a Parabola

The perimeter of the loop of a curve is the distance around the loop. In the case of a parabola, the loop refers to the portion of the curve that starts at the vertex and extends to the point where the curve intersects the x-axis again.

Equation of the Parabola

The given equation of the parabola is 9ay^2 = (x - 2a)(x - 5a)^2. This is a vertical parabola with its vertex at (3a, 0).

Finding the x-Intercepts

To find the points where the parabola intersects the x-axis, we set y = 0 in the equation and solve for x. We get:

0 = (x - 2a)(x - 5a)^2

x = 2a or x = 5a (double root)

Finding the Length of the Loop

The length of the loop is equal to the sum of the distances from the vertex to each x-intercept. Using the distance formula, we get:

d1 = sqrt[(2a - 3a)^2 + (0 - 0)^2] = a
d2 = 2sqrt[(5a - 3a)^2 + (0 - 0)^2] = 2a*sqrt(2)

Therefore, the perimeter of the loop is:

P = d1 + d2 + d1 = a + 2a*sqrt(2) + a = (2 + 2sqrt(2))a

Conclusion

The perimeter of the loop of the parabola 9ay^2 = (x - 2a)(x - 5a)^2 is (2 + 2sqrt(2))a.
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