Quoc Tran Anh Le Coordinator
07/08/2018 at 02:11-
Lê Anh Duy 07/08/2018 at 04:04
1/3 × 1/3 + 1/2 × 1/2 + 1/5 × 1/5 = 1/9 + 1/4 +1/25 = 361/900
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1/3 × 1/3 + 1/2 × 1/2 + 1/5 × 1/5 = 1/9 + 1/4 +1/25 = 361/900
Selected by MathYouLike