Các câu hỏi tương tự
tìm x biết 1/30 + 1/42+1/56+1/72+1/90+1/110+1/132 - x=2/3
Tìm x biết : 1/30 + 1/42 +1/56 +1/72 + 1/90 + 1/110 + 1/132 - x = 2/3
Tìm x biết 1/30+1/42+1/56+1/72+1/90+1/110+1/132 -x = 2/3
1/30+1/42+1/56+1/72+1/90+1/110+1/132
A=1/30+1/42+1/56+1/72+1/90+1/110+1/132
A=1/30+1/42+1/56+1/72+1/90+1/110+1/132
B= 1/30 + 1/42 + 1/56 + 1/72 + 1/90 + 1/110 + 1/132
A=-1/20+-1/30+-1/42+-1/56+-1/72+-1/90+-1/110+-1/132
A = 1/30+1/42+1/56+1/72+1/90+1/110+1/132