December 2018 0 16 Report
Diketahui lingkaran x² + y² + 4x + 2y - 4 = 0 melalui titik A (5, -1). Jari jari lingkaran tersebut adalah?
a. 9
b. 2√6
c. 4
d. 3
e. √7
Mohon dijawab dgn caranya :)
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