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

Toán Lớp 7: a. 2mũ 3+ 2.(1/2)0- 1+ [(-2)mũ2 : 1/2 )].8 b, 4.(1 và 1/4)mũ 2 + 2mũ5 . [(3/4)mũ2 : (5/4)mũ3] : (3/2)mũ2 c,(5mũ-5 )mũ-1 . (1/2)mũ-2 . 1

Home/ Toán Lớp 7: a. 2mũ 3+ 2.(1/2)0- 1+ [(-2)mũ2 : 1/2 )].8 b, 4.(1 và 1/4)mũ 2 + 2mũ5 . [(3/4)mũ2 : (5/4)mũ3] : (3/2)mũ2 c,(5mũ-5 )mũ-1 . (1/2)mũ-2 . 1

Toán Lớp 7: a. 2mũ 3+ 2.(1/2)0- 1+ [(-2)mũ2 : 1/2 )].8 b, 4.(1 và 1/4)mũ 2 + 2mũ5 . [(3/4)mũ2 : (5/4)mũ3] : (3/2)mũ2 c,(5mũ-5 )mũ-1 . (1/2)mũ-2 . 1

Tháng Tám 30, 2022 Toán học 1 Comment 0 views

Toán Lớp 7: a. 2mũ 3+ 2.(1/2)0- 1+ [(-2)mũ2 : 1/2 )].8
b, 4.(1 và 1/4)mũ 2 + 2mũ5 . [(3/4)mũ2 : (5/4)mũ3] : (3/2)mũ2
c,(5mũ-5 )mũ-1 . (1/2)mũ-2 . 1/105
Mn giup em voi a, mai em nop r a

Comments ( 1 )

  1. maingocquynhnhu2k1
    maingocquynhnhu2k1
    30 Tháng Tám, 2022 at 3:29 sáng
    Reply
    a. 2^3+ 2.(1/2)^0- 1+ [(-2)^2 : 1/2 )].8
    =8+2.1-1+[4:1/2].8
    =8+2-1+8.8
    =10-1+64
    =9+64
    =73
    ——
    b, 4.(1 1/4)^2 + 2^5 . [(3/4)^2 : (5/4)^3] : (3/2)^2
    =4.(5/4)^2+32.[9/16:125/64]:9/4
    =4. 25/16+32. 36/125:9/4
    =25/4+1152/125:9/4
    =25/4+512/125
    =5173/500
    ——
    c,(5^-5 )^-1 . (1/2)^-2 . 1/105
    =(1/3125)^-1. 4. 1/105
    =3125.4. 1/105
    =12500. 1/105
    =2500/21

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

Huyền Linh

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