Cho a/b=c/d.Chứng minh: 7a^2+3ab/11a^2-8b^2=7c^2+3cd/11c^2-8d^2

Question

Cho a/b=c/d.Chứng minh:
7a^2+3ab/11a^2-8b^2=7c^2+3cd/11c^2-8d^2

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King 5 years 2020-11-02T12:48:00+00:00 2 Answers 164 views 0

Answers ( )

  1. Dulcie
    0
    2020-11-02T12:49:32+00:00
    Reply

    Đáp án:

     

    Giải thích các bước giải:

     

    cho-a-b-c-d-chung-minh-7a-2-3ab-11a-2-8b-2-7c-2-3cd-11c-2-8d-2

  2. Philomena
    0
    2020-11-02T12:49:58+00:00
    Reply

     Làm trg ảnh nhé

    cho-a-b-c-d-chung-minh-7a-2-3ab-11a-2-8b-2-7c-2-3cd-11c-2-8d-2

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