câu 1 tính giá trị biểu thức A=120 :{60:[(3^2+4^2)-5} B=1/2+1/3-1/6 C=|4-6|+2 E=2^2+2^3+3^2+3^3-48 29/11/2021 Bởi Kaylee câu 1 tính giá trị biểu thức A=120 :{60:[(3^2+4^2)-5} B=1/2+1/3-1/6 C=|4-6|+2 E=2^2+2^3+3^2+3^3-48
`A=120:{60:[(3^2+4^2)-5]}` `=120:{60:[25-5]}` `=120:{60:20}` `=120:3` `=40` `B=1/2 +1/3 -1/6` `=3/6+2/6-1/6` `=4/6=2/3` `C=|4-6|+2=|-2|+2=2+2=4` `E=2^2+2^3+3^2+3^3-48` `=4+8+9+27-48` `=0` Bình luận
A=120 :{60:[(3^2+4^2)-5]} =120:{60:[(9+16)-5]} =120:{60:[25-5]} =120:{60:20} =120:3 =40 B=1/2+1/3-1/6 =5/6-1/6 =2/3 C=|4-6|+2 =|-2|+2 =2+2 =4 E=2^2+2^3+3^2+3^3-48 =4+8+9+27-48 =12+9+27-48 =21+27-48 =48-48 =0 CHÚC BẠN HỌC TỐT NHA!!! Bình luận
`A=120:{60:[(3^2+4^2)-5]}`
`=120:{60:[25-5]}`
`=120:{60:20}`
`=120:3`
`=40`
`B=1/2 +1/3 -1/6`
`=3/6+2/6-1/6`
`=4/6=2/3`
`C=|4-6|+2=|-2|+2=2+2=4`
`E=2^2+2^3+3^2+3^3-48`
`=4+8+9+27-48`
`=0`
A=120 :{60:[(3^2+4^2)-5]}
=120:{60:[(9+16)-5]}
=120:{60:[25-5]}
=120:{60:20}
=120:3
=40
B=1/2+1/3-1/6
=5/6-1/6
=2/3
C=|4-6|+2
=|-2|+2
=2+2
=4
E=2^2+2^3+3^2+3^3-48
=4+8+9+27-48
=12+9+27-48
=21+27-48
=48-48
=0
CHÚC BẠN HỌC TỐT NHA!!!