giúp mk câu này 2017/2018 x -1/2+ -1/3 x 2017/2018+2017/2018 x -1/6 nhớ (/) là phần nha 25/08/2021 Bởi Cora giúp mk câu này 2017/2018 x -1/2+ -1/3 x 2017/2018+2017/2018 x -1/6 nhớ (/) là phần nha
2017/2018 x -1/2 + -1/3 x 2017/2018 + 2017/2018 x -1/6 = 2017/2018 x ( -1/2 + -1/3 + -1/6) = 2017/2018 x -1 = -2017/2018 Bình luận
$\dfrac{2017}{2018}.(\dfrac{-1}{2})+(\dfrac{-1}{3}).\dfrac{2017}{2018}+\dfrac{2017}{2018}.(\dfrac{-1}{6})$ $=\dfrac{2017}{2018}.(\dfrac{-1}{2}-\dfrac{1}{3}-\dfrac{1}{6})$ $=\dfrac{2017}{2018}.(-1)$ $=-\dfrac{2017}{2018}$ Bình luận
2017/2018 x -1/2 + -1/3 x 2017/2018 + 2017/2018 x -1/6
= 2017/2018 x ( -1/2 + -1/3 + -1/6)
= 2017/2018 x -1
= -2017/2018
$\dfrac{2017}{2018}.(\dfrac{-1}{2})+(\dfrac{-1}{3}).\dfrac{2017}{2018}+\dfrac{2017}{2018}.(\dfrac{-1}{6})$
$=\dfrac{2017}{2018}.(\dfrac{-1}{2}-\dfrac{1}{3}-\dfrac{1}{6})$
$=\dfrac{2017}{2018}.(-1)$
$=-\dfrac{2017}{2018}$