RUT GON CAC PHAN SO SAU:
H = 5 11 . 712 + 5 11 . 711 / 512 . 712 + 9 . 511 . 7 11
K = 152 . 164 - 153 . 163 / 122 . 203 - 202 .123
Dau gach cheo / la dau phan so nha!
giup minh vs minh can gap
a -5/9 + ( 17/20 - 4/9 ) b (7/15 - 11/20 ). -25/3 c ( 5/6 - 1/2 ).(8/15 - 3/15) d 11/12 + 7/16 : -3/4 - 13/12 giup mimh voi minh tich cho
Rut gon phan so sau :
52.611.162 + 62.126.152 / 2.612.104 - 812. 9603
( đây là 1 phân số)
a.4^8.4^4
b.5^12 . 7-5^11 . 10
c.2^20 . 15+2^10 . 85
d.27^16 : 9^10
e.125^3 :25^4
f.24^4 : 3^4 - 32^12: 16^12
Mình cần gấp ạ
(15^(2)*16^(4)-15^(3)*16^(3))/(12^(2)*20^(3)-20^(2)*12^(3))
câu này tính từng bước ra bao nhiêu ạ
Câu 1:
30.45+55.30–30.30
5√2.2√2–1+135
15+(-3)+|-111+(-10)|-3|
15–{200:[ 30+( 16+2√15 : 2√12 )]}
Câu 2:
x –20= -36
( 5x – 25 ) : 4 + 75 = 125
| x – 4 | = 9
( 3x – 17 ) . 16 = 64
5x –18 = -3
2 . | x | –5 = 3
x – 5 = ( -14 ) + 8
| 2x – 7 | – | -3/2 | = 7
Câu 3:
21 . 16 + 21 . 59 + 21 . 35
80 – ( 4 . 25 – 3 . 8 )
( -12 ) + 83 + ( -48 ) + 17
| ( -12 ) + ( -7 ) | . 2 – 30
8 . ( -7 ) + ( +3 ) . 8
| -5 | + | 16 | + | 5 |
5 mũ 12. 7- 5 mũ 11 . 10
2 mũ 20. 15+2 mũ 20 . 85
125 mũ 3 : 25 mũ 4
24 mũ 4 : 3 mũ 4 - 32 mũ 12 : 16 mũ 12
1) 15 - 98 + 91 - 75 + 98 - 91 - 13
2) 5 - ( 4 - 7 + 12 ) + ( 4 - 7 + 12 ) - 10
3) 20 - ( 25 - 98 + 12 ) + ( 25 - 98 - 72 )
4) - ( 17 - 4 + 13 + | -17 | + 13 )
5) | -16 | - ( 5 - 8 + 7) - ( - 5 ) - 8
6) -20 + ( 3 - 16 + 7 ) - ( 3 - 16 + 7 )
7) 32 - ( 5 - 8 + 32 ) + ( 5 - 8 + 6 )
8) -20 - ( 25 - 11 + 8 ) + ( 25 - 8 + 20 )
Bài 8: tìm x
a) x + 10 = 20
b) 2 . x + 15 = 35
c) 3 ⋅ ( x + 2 ) = 15
d) 10 . x + 15 . 11 = 20 . 10
e) 4 . ( x + 2 ) = 3 . 4
f) 33 x + 135 = 26 . 9
g) 2 . x + 15 + 16 + 17 = 100
h) 2 . (x + 9 + 10 + 11) = 4 . 12 . 25