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The set {(x, y ) : | x| + |y| = 1} in t...

The set {(x, y ) : | x| + |y| = 1} in the xy-plane represents a)a square b)a circle c)an ellipse d) a rectangle which is not a square

A

a square

B

a circle

C

an ellipse

D

a rectangle which is not a squre

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The correct Answer is:
A
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