Q. Write an equation for an ellipse centered at the origin, which has foci at (0,±6) and vertices at (0,±37).
Given Foci and Vertices: We are given the foci at (0,±6) and vertices at (0,±37). Since the foci and vertices are on the y-axis, this indicates a vertical orientation for the ellipse.
Calculate c: The distance from the center to a focus is denoted by c, and the distance from the center to a vertex is denoted by a. We can find the value of c using the coordinates of the foci.c=6
Calculate a: We can find the value of a using the coordinates of the vertices.a=37
Standard Form Equation: For an ellipse centered at the origin with a vertical orientation, the standard form of the equation is:(b2x2)+(a2y2)=1We have the value of a, but we need to find the value of b.
Relationship between a, b, and c: The relationship between a, b, and c for an ellipse is given by the equation:c2=a2−b2We can use this to solve for b2.b2=a2−c2
Find b2: Substitute the known values of a and c into the equation to find b2. b2=(37)2−62 b2=37−36 b2=1
Write Standard Form Equation: Now that we have the values of a and b, we can write the standard form equation of the ellipse.The equation is:b2x2+a2y2=1Substitute b2=1 and a2=37 into the equation:1x2+37y2=1
Simplify Equation: Simplify the equation to get the final standard form: x2+37y2=1
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