em cung tra biet dang dinh hoi cac anh chi the ma lai bi hoi lai de mai em hoi thay nhe ko
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em cung tra biet dang dinh hoi cac anh chi the ma lai bi hoi lai de mai em hoi thay nhe ko
5/2+5/6+5/18+5/54+5/162+5/486+5/1458
Giải ra cho mình nhé
5/2+5/6+5/18+5/54+5/162+5/486
B=5/2+5/6+5/18+5/54+5/162+5/486
\(B=\frac{5}{2}+\frac{5}{6}+\frac{5}{18}+\frac{5}{54}+\frac{5}{162}+\frac{5}{486}\)
\(B=\frac{5}{2}+\frac{5}{6}+\frac{5}{18}+\frac{5}{54}+\frac{5}{162}+\frac{5}{486}\)
\(B=\frac{5}{2}+\frac{5}{6}+\frac{5}{18}+\frac{5}{54}+\frac{5}{162}+\frac{5}{486}\)
1.b=5/2+5/6+5/18+5/54+5/162+5/486
2.c=3/2+3/8+3/32+3/128+3/512
tinh nhanh
\(\frac{5}{2}+\frac{5}{6}+\frac{5}{18}+\frac{5}{54}+\frac{5}{162}+\frac{5}{486}\)
5/2+5/6+5/18+5/54+5/162
mọi người ơi nhanh giùm mình