Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Application of Integrals

Question:

Area (in sq. units) of the region outside $\frac{|x|}{2}+\frac{|y|}{3}=1$ and inside the ellipse $\frac{x^2}{4}+\frac{y^2}{9}=1$ is

Options:

$3 (π-2)$

$3 (4-π)$

$6 (π-2)$

$6 (4-π)$

Correct Answer:

$6 (π-2)$

Explanation:

Let A be the required area. Then,

A = Area of the ellipse - Area of rhombus ABA' B'

$⇒A=π(2) (3)-\frac{1}{2}(AA' × BB')$

$⇒A=6π-\frac{1}{2}(4×6)=6π-12=6 (π-2)$