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0 votes
6.7k views
in Coordinate Geometry by (47.8k points)

If Q1, Q2, Q3, Q4 are the quadrants in a Cartesian plane then Q∩ Q3 is 

(1) Q1 ∪ Q2 

(2) Q2 ∪ Q3

(3) Null set 

(4) Negative x-axis

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1 Answer

+1 vote
by (47.4k points)

(3) Null set

Quadrants do not contain the axis.

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