December 2018 1 61 Report
Koordinat titik pusat dan jari jari lingkaran x²+y² + 4x - 12y - 9 = 0 adalah?

a. (4, -12) dan 7
b. (2,-6) dan 3
c. (-2,6) dan 7
d. (-2,6) dan 9
e. (-4,12) dan 3

minta tlong dibantu ya kawan....
#dijawab dg caranya




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