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# If the Lengths of Semi-major and Semi-minor Axes of an Ellipse Are 2 and √ 3 and Their Corresponding Equations Are Y − 5 = 0 and X + 3 = 0, Then Write the Equation of the Ellipse. - Mathematics

If the lengths of semi-major and semi-minor axes of an ellipse are 2 and $\sqrt{3}$ and their corresponding equations are y − 5 = 0 and x + 3 = 0, then write the equation of the ellipse.

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#### Solution

$\text{ The lengths of the semi major and the semi minor axes of the ellipse are 2 and }\sqrt{3}, \text{ respectively }. \text{ Their corresponding equations are } y-5=0 \text{ and } x+3 =0.$
$So,a=2 \text{ and }b=\sqrt{3}$
$\text{ The equation of the ellipse is given by }$
$\frac{\left( x + 3 \right)^2}{4} + \frac{\left( y - 5 \right)^2}{3} = 1$
$\Rightarrow 3 \left( x + 3 \right)^2 + 4 \left( y - 5 \right)^2 = 12$
$\Rightarrow 3\left( x^2 + 9 + 6x \right) + 4\left( y^2 + 25 - 10y \right) = 12$
$\Rightarrow 3 x^2 + 27 + 18x + 4 y^2 + 100 - 40y = 12$
$\Rightarrow 3 x^2 + 4 y^2 + 18x - 40y + 115 = 0$

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#### APPEARS IN

RD Sharma Class 11 Mathematics Textbook
Chapter 26 Ellipse
Q 1 | Page 27
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