c) ( -1 2 )^ 3 +0.75.2 3 ^ 2 -20\%=( -2 5 )^ 2

Question

c) ( -1 2 )^ 3 +0.75.2 3 ^ 2 -20\%=( -2 5 )^ 2

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Arya 4 tuần 2021-09-06T21:38:52+00:00 2 Answers 2 views 0

Answers ( )

    0
    2021-09-06T21:40:01+00:00

    Đáp án:

    `=2/15`

    Giải thích các bước giải:

    `((-1)/2)^3+0,75xx2/3-20%`

    `=(-1)/2.(-1)/2.(-1)/2+3/4xx2/3-1/5`

    `=(-1)/6+1/2-1/5`

    `=(-5)/30+15/30-6/30`

    `=2/15`

    0
    2021-09-06T21:40:30+00:00

    c) ( -1 2 )^ 3 +0.75.2 3 ^ 2 -20\%=( -2 5 )^ 2

    =-1/6+1/2-1/5

    =-5/30+15/30-6/30

    =2/15

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