Mathematics, 22.10.2019 05:00 dpazmembreno
Find the distance between the centers of the circles x²+y²-2x+4y-11=0 and x²+y²+4x+2y-9=0.
Answers: 3
.... (1)
, then we need to add 
to make it perfect square.
.... (2)
.... (3)
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Find the distance between the centers of the circles x²+y²-2x+4y-11=0 and x²+y²+4x+2y-9=0....
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