December 2018 1 672 Report
Lingkaran L1 berjari jari 2 menyinggung sumbu x dan y. Lingkaran L2 berpusat di (0,0) bersinggungan dalam dengan lingkaran L1. Persamaan lingkaran L2 adalah...
A.x2+y2=2+2akar2
B. x2+y2=1+akar2
C.x2+y2=2akar2
D. x2+y2=12+8akar2
E.x2+y2=6+8akar2
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