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

Toán Lớp 6: (2^2:4/3-1/2)x6/5-(-7/15)^0 (1+2/3-1/4)x(0,8-3/4)^2 (1/3)^50 x(-9)^25-2/3 : 4

Home/ Toán Lớp 6: (2^2:4/3-1/2)x6/5-(-7/15)^0 (1+2/3-1/4)x(0,8-3/4)^2 (1/3)^50 x(-9)^25-2/3 : 4

Toán Lớp 6: (2^2:4/3-1/2)x6/5-(-7/15)^0 (1+2/3-1/4)x(0,8-3/4)^2 (1/3)^50 x(-9)^25-2/3 : 4

Tháng Mười 23, 2022 Toán học 2 Comments 0 views

Toán Lớp 6: (2^2:4/3-1/2)x6/5-(-7/15)^0
(1+2/3-1/4)x(0,8-3/4)^2
(1/3)^50 x(-9)^25-2/3 : 4

Comments ( 2 )

  1. minhtuyethue
    minhtuyethue
    23 Tháng Mười, 2022 at 3:35 sáng
    Reply
    (2^2:4/3-1/2)xx6/5-((-7)/15)^0

    =(4:4/3-1/2)xx6/5-((-7)/15)^0

    =(3-1/2)xx6/5-1

    =5/2xx6/5-1

    =3-1

    =2

    ————-
    (1+2/3-1/4)xx(0,8-3/4)^2

    =(5/3-1/4)xx(4/5-3/4)^2

    =17/12xx(1/20)^2

    =17/12xx1/400

    =17/4800

    ————-
    (1/3)^50xx(-9)^25-2/3 : 4

    =[(1/3)^50xx(-9)^25]-(2/3:4)

    =-1-1/6

    =(-7)/6

     

  2. quynhmaithu
    quynhmaithu
    23 Tháng Mười, 2022 at 3:35 sáng
    Reply
    Giải đáp:
     (2^2 : 4/3 – 1/2) . 6/5 – (-7/15)^0
    = (4 : 4/3 – 1/2) . 6/5 – 1
    = (4 . 3/4 – 1/2). 6/5 – 1
    = (3 – 1/2). 6/5 – 1
    = 5/2 . 6/5 – 1
    = 3 – 1
    = 2
    (1 + 2/3 – 1/4) . (0,8 – 3/4)^2
    = (12/12 + 8/12 – 3/12) . (4/5 – 3/4)^2
    = 17/12 . (16/20 – 15/20)^2
    = 17/12 . (1/20)^2
    = 17/12 . 1/400
    = 17/4800
    (1/3)^50 . (-9)^25 – 2/3 : 4
    = (1/3)^50 . (-3^2)^25 – 2/3 . 1/4
    = (1/3)^50 . (-3^50) – 1/6
    = -(1/3 . 3)^50 -1/6
    = -1^50 – 1/6
    = -1 – 1/6
    = -7/6

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

Khánh Ngân

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