A=\(\frac{5\left(\frac{1}{7}-\frac{1}{9}+\frac{1}{11}\right)}{4\left(\frac{1}{7}-\frac{1}{9}+\frac{1}{11}\right)}\)+\(\frac{1}{4}\)
A=\(\frac{5}{4}+\frac{1}{4}\)
A=\(\frac{6}{4}\)=\(\frac{3}{2}\)
k cho mk nha bn
xin lỗi nhé mk nhầm dấu, phải là:
A=\(\frac{5\left(\frac{1}{7}-\frac{1}{9}+\frac{1}{11}\right)}{4\left(\frac{1}{7}-\frac{1}{9}+\frac{1}{11}\right)}\)-\(\frac{1}{4}\)
A=\(\frac{5}{4}-\frac{1}{4}\)
A=1
k cho mk nha bn