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 6: chứng minh: 8^5+2^11 chia hết cho 17

Toán Lớp 6: chứng minh: 8^5+2^11 chia hết cho 17

Comments ( 2 )

  1. Ta có
    8^5+2^11=(2³)^5+2^11
    = 2^15+2^11
    = 2^11(2^4+1)
    =2^11 .17$\vdots$
     =>8^5+2^11$\vdots$17

  2. ~ Bạn tham khảo ~
    8^5 + 2^11
    = (2^3)^5 + 2^11
    = 2^15 + 2^11
    = 2^11 . 2^4 + 2^11
    = 2^11 . (2^4 +1 )
    = 2^11 . (16+1)
    = 2^11 . 17
    Mà 17 vdots 17
    Vậy 8^5 + 2^11 vdots 17
    $#Vịt vàng$

Leave a reply

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

About Hồng