tìm giá trị biểu thức sau?: A=2+__1__ 1+__1__ 2+__1__ 2 06/12/2021 Bởi Ximena tìm giá trị biểu thức sau?: A=2+__1__ 1+__1__ 2+__1__ 2
$\begin{array}{l}A = 2+\dfrac{1}{1 + \dfrac{1}{2+ \dfrac{1}{2}}}\\ \to A = 2+\dfrac{1}{1 + \dfrac{1}{\dfrac{5}{2}}}\\ \to A = 2+\dfrac{1}{1 + \dfrac{2}{5}}\\ \to A = 2+\dfrac{1}{\dfrac{7}{5}}\\ \to A = 2 + \dfrac{5}{7}\\ \to A = \dfrac{19}{7} \end{array}$ Bình luận
Đáp án: `A=2+1/(1+1/(2+1/2))` `A=2+1/(1+1/(5/2))` `A=A=2+1/(1+2/5)` `A=2+1/(7/5)` `A=2+5/7` `A=19/7` Bình luận
$\begin{array}{l}A = 2+\dfrac{1}{1 + \dfrac{1}{2+ \dfrac{1}{2}}}\\ \to A = 2+\dfrac{1}{1 + \dfrac{1}{\dfrac{5}{2}}}\\ \to A = 2+\dfrac{1}{1 + \dfrac{2}{5}}\\ \to A = 2+\dfrac{1}{\dfrac{7}{5}}\\ \to A = 2 + \dfrac{5}{7}\\ \to A = \dfrac{19}{7} \end{array}$
Đáp án:
`A=2+1/(1+1/(2+1/2))`
`A=2+1/(1+1/(5/2))`
`A=A=2+1/(1+2/5)`
`A=2+1/(7/5)`
`A=2+5/7`
`A=19/7`