Toán Lớp 6: Tìm x ∈ N biết
1^3 +2^3+3^3+….+10^3=(x+1)
1+3+5+….+99=(x-2)
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Toán Lớp 6: Tìm x ∈ N biết
1^3 +2^3+3^3+….+10^3=(x+1)
1+3+5+….+99=(x-2)
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