Jaki jest środek okręgu i promień:a) x²-4²+4x-2y+3=0 b) x²+y²-2x+6y+6=0
a)
x²-4²+4x-2y+3=0
S(-2,1)
r=√2
b)
x²+y²-2x+6y+6=0
S(1,-3)
r=2
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a)
x²-4²+4x-2y+3=0
S(-2,1)
r=√2
b)
x²+y²-2x+6y+6=0
S(1,-3)
r=2