\(\frac{1}{2}+\frac{1}{6}+\frac{1}{12}+\frac{1}{20}+\frac{1}{30}+\frac{1}{x}=\frac{41}{42}\)
\(\frac{5}{6}+\frac{1}{x}=\frac{41}{42}\)
\(\frac{1}{x}=\frac{41}{42}-\frac{5}{6}\)
\(\frac{1}{x}=\frac{1}{7}\)
Vậy x = 7
1/2+1/6+1/12+1/20+1/30+1/x=41/42=?
Tìm x biết :1/2+1/6+1/12+1/20+1/30+1/x=41/42
1/2+1/6+1/12+1/20+1/30+1/x=41/42
tìm x
1/2+1/6+1/12+1/20+1/30+1/x=41/42
1/2+1/6+1/12+1/20+1/30+1/x=41/42
x=
1/2+1/6+1/12+1/20+1/30+1/x=41/42
giai giup minh cau nay nhe
a,1/2+1/6+1/12+1/20+1/30+1/x=41/42
bài 1 1/2+1/6+1/12+1/20+1/30+1/x=41/42
bài 2 (x-273)*(1+3+5....+2015)=0
1/2+5/6+11/12+19/20+29/30+41/42+55/56+71/72+8/9
