tim x bang hai cach khac nhau 27+x=24+27
bai 1:tim x
a) (x+1/5)2+17/25=26/25
b)-1va 5/27-(3x-7/9)3=-24/27
bai 2:cho A=n+2/n-5 (n thuoc Z ;n khac 5).Tim x de A thuoc Z
1a. x=-0,8
b)-1va 5/27-(3x-7/9)3=-24/27 mik ko hỉu đề
2.n= 6
cho 2phan so 6/x va 24/x-27
voi gia tri nguyen nao thi hai phan so tren bang nhau
Ta co
6/x=24/x-27
24/4x=24/x-27
4x=x-27
4x-x=-27
3x=-27
x=-9
Tinh bang cach thuan tien :
41 / 27 x 13 / 18 - 13 / 18 x 14 / 27
41 / 27 x 13 / 18 - 13 / 18 x 14 / 27 = ( 41 / 27 - 14 / 27 ) x 13 / 18 = 27 / 27 x 13 / 18 = 1 x 13 / 18 = 13 / 18
Tinh bang cach thuan tien nhat :
27 . 77 + 24 . 27 - 27
( LAM DAY DU MOI TICK , KHONG THI THOI )
=24.77+24.27-27.1
=27.(74+24-1)
=27.100
=2700
hom nay bn nợ tôi 1 tick đấy nhé -_-
em hay tim ucln ( 35;105) bang hai cach khac nhau , roi so sanh ket qua
goi y cua bai toan
thuat toan o - clit tim ucln cua hai so
giup minh voi huhu
tinh bang cach thuan tien nhat:(198,08 x 23,56 + 165,9 : 27) x (25,07 x 3 - 75,21) + 8,8
\(\left(198,08\times23,56+165,9:27\right)\times\left(25,07\times3-75,21\right)+8,8\\ =\left(198,08\times23,56+165,9:27\right)\times\left(75,21-75,21\right)+8,8\\ =\left(198,08\times23,56+165,9:27\right)\times0+8,8\\ =0+8,8\\ =8,8\)
(198,08×23,56+ 165,9:27) × (25,07×3−75,21)+ 8,8
= (198,08 × 23,56 + 165,9 : 27) × (75,21 − 75,21) + 8,8
= (198,08× 23,56 +165,9:27) × 0 + 8,8
= 0+8,8
= 8,8
(198,08×23,56 + 165,9 : 27)×(25,07×3 − 75,21) + 8,8
= (198,08×23,56 + 165,9 : 27)×(75,21 − 75,21) + 8,8
= (198,08×23,56 + 165,9 : 27)×0 + 8,8
= 0 + 8,8
= 8,8
tinh bang cach thuan tien nhat:
(198,08 x 23,56 + 165,9 : 27) x (25,07 x 3 - 75,21) + 8,8
=(198,08*23,56+165,9:27)*0+8,8
=0+8,8
=8,8
tính bang cach thuan tien nhat
198 x 27 + 198 x 72 + 198
198×27+198×72+198
=198×27+198×72+198×1
=198×(27+72+1)
=198×100
=19800
=198x(27+72+1)
=198x100=19800
vậy..............
k mình nha
tim 4 phan so khac nhau sao cho chung deu lon hon 4/9 va nho hon 6/11 bang 2 cach