Question

find the distance between(-5,7) and (-1,-3)​

Answer 1

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P≡(−5,7)

Q≡(−1,3)

∴d(P,Q)=(−5−(−1))2+(7−3)2

∴d(P,Q)=16+16

∴d(P,Q)=32

∴d(P,Q)=42