Question

\(\frac{1}{6}\)x\(\frac{1}{3}\)+\(\frac{17}{6}\)x\(\frac{1}{3}\)+\(\frac{2015}{2016}\)-1

Answer 1

\(\frac{1}{6}.\frac{1}{3}+\frac{17}{6}.\frac{1}{3}+\frac{2015}{2016}-1\)

\(=\frac{1}{3}\left(\frac{1}{6}+\frac{17}{6}\right)+\frac{2015}{2016}-1\)

\(=\frac{1}{3}.3+\frac{2015}{2016}-1\)

\(=1-1+\frac{2015}{2016}=\frac{2015}{2016}\)

Answer 2

\(\frac{1}{6}\times\frac{1}{3}+\frac{17}{6}\times\frac{1}{3}+\frac{2015}{2016}-1\)

\(=\left(\frac{1}{6}+\frac{17}{6}\right)\times\frac{1}{3}+\frac{2015}{2016}-1\)

\(=3\times\frac{1}{3}+\frac{2015}{2016}-1\)

\(=1+\frac{2015}{2016}-1\)

\(=0+\frac{2015}{2016}=\frac{2015}{2016}\)

Answer 3

2015/2016 nha bn

Answer 4

2+4+6+8+...+68+72 tính nhanh s m.n