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If (x, y) = (7, 3), then (x + y, x – y) lies in 

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If (x, y) = (7, 3), then (x + y, x – y) lies in 

A) Q4 

B) Q1 

C) Q2 

D) Q3

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2 Answers

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Best answer

Correct option is (B) Q1

\(\because\) (x, y) = (7, 3)

\(\therefore\) x = 7 & y = 3

Now, x+y = 7+3 = 10 > 0 & x - y = 7 - 3 = 4 > 0

\(\therefore\) (x + y, x – y) = (10, 4) lies in \(Q_1.\)

+1 vote
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Correct option is B) Q1

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