Question

|-3/7| : (-3)^2 - căn bậc của 4/49

Answer 1

`|-3/7|:(-3)^2-\sqrt{4/49}`

`=3/7 . 1/[3^2]-2/7`

`=1/21-2/7`

`=1/21-6/21`

`=-5/21`

Answer 2

\(\left|-\dfrac{3}{7}\right|:\left(-3\right)^2-\sqrt{\dfrac{4}{49}}\\ =\dfrac{3}{7}:9-\dfrac{2}{7}\\ =\dfrac{1}{21}-\dfrac{2}{7}\\ =\dfrac{-5}{21}\)

Answer 3

` |-3/7 | ` \(:\left(-3\right)^2-\sqrt{\dfrac{4}{49}}\)

`= 3/7 : 9 - 2/7`

`= 3/7 xx 1/9-2/7`

`= 3/63 -2/7`

`= 3/63 - 18/63`

`=-15/63`

`=-5/21`