Precalculus
posted by Anon .
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!

x = 5cos(t)
y = 3sin(t)
Respond to this Question
Similar Questions

Math
2 circles C1 and C2 meet at the points A and B. Points C and Dare points on the circumferences of C1 and C2 respectively such that angle CAB = angle DAB. CD cuts C1 and C2 at the points Y and X respectively. if Z is the foot of the … 
Math
A Target consists of three concentric circles with the same center. The radii of the circles have lengths of 3 inches, 7 inches and 9 inches. The 7 inch radii spacing is shaded. (To the nearest percent,) What percent of the target … 
Physics
A current I=2.3 A flows around a continuous path that consists of portions of two concentric circles of radii a and a/2, respectively, where a=6 cm, and two straight radial segments. The point P is at the common center of the two circle … 
Geometry/Trigonometry
Circles with centers (2,1) and (8,9) have radii 1 and 9, respectively. The equation of a common external tangent to the circles can be written in the form y=mx+b with m < 0. What is b? 
Haley
Three circles with radii 35cm, 50cm, and 65cm respectively are tangent to each other externally. Find the angles of the triangle formed by joining the centers of the circles. My teacher said to use the cosine law cause you know 3 sides … 
trig
Two circles of radii 5 and 3 cm, respectively, intersect at two points. At either point of intersection, the tangent lines to the circles form a 60◦ angle, as in Figure 2.2.4 above. Find the distance between the centers of the … 
math
Two circles have a radii of 15 and 95. If the two external tangents to the circles intersect at 60 degrees, how far apart are the centers of the circles? 
math
Two circles have a radii of 15 and 95. If the two external tangents to the circles intersect at 60 degrees, how far apart are the centers of the circles? 
Trigonometry
Two circles, whose radii are 12 inches and 16 inches respectively, intersect. The angle between the tangents at either of the points of intersection is 29'30'. Find the distance between the centers of the circles. 
math
Two circles of radii 9cm and 13cm have their centres 15cm apart. Find the angle between the radii joining the centres to the points of intersection of the circles. Hence find the overlapping area between the two circles.  (Been struggling …