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 xycoordinate system. A ray from the center at an angle of t degrees to the xaxis 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 xcoordinate 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 ycoordinate 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!

Precalculus  Steve, Friday, January 20, 2012 at 10:53pm
x = 5cos(t)
y = 3sin(t)
Answer This Question
Related Questions
 trig  Two circles of radii 5 and 3 cm, respectively, intersect at two points. ...
 math  Two circles of radii 9cm and 13cm have their centres 15cm apart. Find the...
 Trigonometry  Two circles, whose radii are 12 inches and 16 inches respectively...
 Haley  Three circles with radii 35cm, 50cm, and 65cm respectively are tangent ...
 Math  2 circles C1 and C2 meet at the points A and B. Points C and Dare points ...
 math  Two circles have a radii of 15 and 95. If the two external tangents to ...
 math  Two circles have a radii of 15 and 95. If the two external tangents to ...
 Geometry/Trigonometry  Circles with centers (2,1) and (8,9) have radii 1 and 9...
 Math  A Target consists of three concentric circles with the same center. The ...
 Physics  A current I=2.3 A flows around a continuous path that consists of ...
More Related Questions