titik dalam lingkaran : x²+y² < 50
n² + (-n)² < 50
2n² < 50
n²-25 < 0
(n+5)(n-5) < 0
-5 < n < 5
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titik dalam lingkaran : x²+y² < 50
n² + (-n)² < 50
2n² < 50
n²-25 < 0
(n+5)(n-5) < 0
-5 < n < 5