Register Now

Login

Lost Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

222-9+11+12:2*14+14 = ? ( )

Toán Lớp 8: Chứng minh rằng: S = 2 + 2 ^ 2 + 2 ^ 3 + – + 2 ^ 8 ⋮ -6

Toán Lớp 8: Chứng minh rằng: S = 2 + 2 ^ 2 + 2 ^ 3 + …. + 2 ^ 8 ⋮ -6

Comments ( 2 )

  1. S = 2 + 2^2 + 2^3 + …. + 2^8
    S = ( 2 + 2^2 ) + …. + ( 2^7 + 2^8 )
    S = 1 . ( 2 + 2^2 ) + …. + 2^6 . ( 2 + 2^2 )
    S = ( 2 + 2^2 ) . ( 1 + …. + 2^6 )
    S = 6 . ( 1 + …. + 2^6 ) vdots – 6 ( Điều phải chứng minh )

Leave a reply

222-9+11+12:2*14+14 = ? ( )