Toán a) 3.[(17+23)-5^9 : 5^7] b) 36.{680:[426.3^0 – (3^4+35:7)]} 09/07/2021 By Melanie a) 3.[(17+23)-5^9 : 5^7] b) 36.{680:[426.3^0 – (3^4+35:7)]}
`a) 3.[(17+23)-5^9:5^7]` `= 3.(40-5^2)` `=3.(40-25)=3.15=45` `b) 36.{680:[426.3^0 – (3^4+35:7)]}` `= 36.{680:[426.1-(81+5)]}` `= 36.[680:340]=36.2` `=72` Trả lời
`a) 3.[(17+23)-5^9:5^7]`
`= 3.(40-5^2)`
`=3.(40-25)=3.15=45`
`b) 36.{680:[426.3^0 – (3^4+35:7)]}`
`= 36.{680:[426.1-(81+5)]}`
`= 36.[680:340]=36.2`
`=72`
`a)=3.[40-5^2]`
`=3.15`
`=45`
`b)=36.{680:[426-86]}`
`=36.{680:340}`
`=36.2`
`=72`