7i – u < 2 (u + 3i) mn giúp em

Question

7i – u < 2 (u + 3i) mn giúp em

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Sigridomena 5 years 2020-11-23T13:34:28+00:00 2 Answers 186 views 0

Answers ( )

  1. Orla
    0
    2020-11-23T13:35:29+00:00
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    $7i – u < 2 (u + 3i)$

    $⇒7i – u <2u+6i$

    $⇒i<3u$

     

  2. Nem
    0
    2020-11-23T13:35:53+00:00
    Reply

     

    7i-u-2-u-3i-mn-giup-em

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