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Malemyhoa
2 năm trước
Cho 2017 số khác 0 a1;a2;a3;a4;..... thỏa mãn a2^2=a1.a3; a3^2=a^2.a4;,,,a2016^2=a2015*a2017 CMR a1^2016+a2^2016+a3^2016+...+a2016^2016/ a2^2016+a3^2016+a4^2016+...+a2017^2016=a1/a2017 Mong mng giúp, hứa vote 5 sao_+ cảm ơn đầy đủ( mik đang cần gấp
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