150 x 150 x 150 = ?
1/Tính nhanh
\(\frac{12}{7}\)x\(\frac{4}{13}\)+\(\frac{12}{14}\)x\(\frac{14}{26}\)+\(\frac{6}{7}\)x\(\frac{2}{13}\)
\(\frac{1}{3}\)+ \(\frac{3}{4}\)x \(\frac{5}{9}\)=
\(\frac{7}{12}\)-\(\frac{5}{4}\)x\(\frac{2}{15}\)=
y+\(\frac{1}{4}\)=\(\frac{7}{8}\)-\(\frac{3}{8}\)
y-\(\frac{5}{12}\)=\(\frac{2}{3}\)-\(\frac{1}{4}\)
\(\frac{12}{7}\)x y=\(\frac{16}{21}\)
\(\frac{5}{4}\): y =\(\frac{7}{12}\)
B = ( 1 - \(\frac{1}{2}\)) x ( 1 - \(\frac{1}{3}\)) x ( 1 - \(\frac{1}{4}\)) x ( 1 - \(\frac{1}{5}\)) x ...x ( 1 - \(\frac{1}{2004}\))
Tính nhớ có cách giải nhé
Tìm x
(x\(\times\)5)+(x\(\times\)2)+(x\(\times\)3)=100
Tìm số tự nhiên X biết \(1\frac{1}{5}\) x \(1\frac{1}{6}\) x \(1\frac{1}{7}\) x ... x \(1\frac{1}{2014}\) = X
Trả lời: X =
Tìm X:
a) X + \(\frac{3}{4}\)x \(\frac{7}{10}\)= \(\frac{53}{40}\)
b) \(\left(\frac{2}{5}+\frac{4}{7}\right)\):X= \(\frac{17}{5}\)
Nêu cách làm nhé
Tìm số tự nhiên X biết: \(1\frac{1}{5}\) x \(1\frac{1}{6}\) x \(1\frac{1}{7}\) x ... x \(1\frac{1}{2014}\)
Trả lời: X =