Toán M= 1 + 2010+ 2010 mũ 2+…+2010 mũ 6+2010 mũ 7 05/10/2021 By Reagan M= 1 + 2010+ 2010 mũ 2+…+2010 mũ 6+2010 mũ 7
`M = 1 + 2010 + 2010^2 + … + 2010^6 + 2010^7` `=> 2010M = 2010 + 2010^2 + 2010^3 + … + 2010^7 + 2010^8` `=> 2010M – M = 2019M = 2010^8 – 1` `=> M = \frac{2010^8 – 1}{2009}` Trả lời
Đáp án + giải thích bước giải : `M = 1 + 2010 + 2010^2 + .. + 2010^6 + 2010^7` `-> 2010M = 2010 + 2010^2 + 2010^3 + … + 2010^7 + 2010^8` `-> 2010M – M = (2010 + 2010^2 + 2010^3 + … + 2010^7 + 2010^8) – (1 + 2010 + 2010^2 + .. + 2010^6 + 2010^7)` `-> 2009M = 2010^8 – 1` `-> M = (2010^8 – 1)/2009` Trả lời
`M = 1 + 2010 + 2010^2 + … + 2010^6 + 2010^7`
`=> 2010M = 2010 + 2010^2 + 2010^3 + … + 2010^7 + 2010^8`
`=> 2010M – M = 2019M = 2010^8 – 1`
`=> M = \frac{2010^8 – 1}{2009}`
Đáp án + giải thích bước giải :
`M = 1 + 2010 + 2010^2 + .. + 2010^6 + 2010^7`
`-> 2010M = 2010 + 2010^2 + 2010^3 + … + 2010^7 + 2010^8`
`-> 2010M – M = (2010 + 2010^2 + 2010^3 + … + 2010^7 + 2010^8) – (1 + 2010 + 2010^2 + .. + 2010^6 + 2010^7)`
`-> 2009M = 2010^8 – 1`
`-> M = (2010^8 – 1)/2009`