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August 1, 2014

Homework Help: Precalculus

Posted by Anon on Friday, January 20, 2012 at 3:40pm.

This figure shows concentric circles of radii 3 and 5, respectively, centered at the origin of an xy-coordinate system. A ray from the center at an angle of t degrees to the x-axis cuts the two circles at points A and B. From A, a vertical line is drawn; and from B, a horizontal line is drawn. These two lines intersect at point P on an ellipse.

For the value of t shown, draw a right triangle (on your paper) for which one of the legs equals the x-coordinate of point P. Use the result to write an equation for x as a function of t.

For the value of t shown, draw a right triangle (on your paper) for which one of the legs equals the y-coordinate of point P. Use the result to write an equation for y as a function of t.

Diagram can be found blondebeliever.tumblr.[com]/precalc (on my blog) under question 2!

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