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Toán Lớp 8: Chứng minh A=1+3+3^2+3^3+…3^11 chia hết cho 4 A=2^9+2^99 chia hết cho ????

Home/ Toán Lớp 8: Chứng minh A=1+3+3^2+3^3+…3^11 chia hết cho 4 A=2^9+2^99 chia hết cho ????

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