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Find a parametric equation for the ellipse x2a2 + y 2b2 = 1

Question

Find a parametric equation for the ellipse x2a2 + y 2b2 = 1

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Solution

A parametric equation for the ellipse given by the equation x^2/a^2 + y^2/b^2 = 1 can be found using the trigonometric functions sine and cosine.

Step 1: Let's introduce a new variable t which will range from 0 to 2π.

Step 2: We can express x and y in terms of t using the definitions of cosine and sine.

The parametric equations are:

x = acos(t) y = bsin(t)

Where t ranges from 0 to 2π. These equations describe the same ellipse as the original equation, but now in a parametric form. The parameter t corresponds to the angle that a line from the origin to the point (x, y) makes with the positive x-axis.

This problem has been solved

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