So sánh A= 196/197 + 197/198 và B= 196+197/197+198

Question

So sánh
A= 196/197 + 197/198 và B= 196+197/197+198

in progress 0
Nho 5 years 2021-05-22T20:48:16+00:00 2 Answers 56 views 0

Answers ( )

  1. Giakhanh
    0
    2021-05-22T20:49:22+00:00
    Reply

    Cho mik xin ctlhn.

     

    so-sanh-a-196-197-197-198-va-b-196-197-197-198

  2. Euphemia
    0
    2021-05-22T20:50:09+00:00
    Reply

    Ta có :` 196/(197+198) < 196/197 ; 197/(197+198) < 197/198`

    `⇒ 196/197 + 197/198 > 196/(197+198) + 197/(197+198)`

    `⇔ 196/197 + 197/198 > (196+197)/(197+198)`

    `⇔ A > B`

    Vậy , A > B`

     

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )