Các câu hỏi tương tự
cho 9 so tu nhien giam dan 9 8 7 6 5 4 3 2 1.co the dat cac dau "+","-" de ket qua cua phep tinh bang 6?
viet ket qua phep tinh duoi dang 1 luy thua
9 mũ 5 : 3 mũ 7
8 mũ 6: 4 mũ 8
25 mũ 7:125 mũ 3
1) Thuc hien phep tinh:
a) 4^6 × 9^2 / 6^3 × 8^2
b) 5^6 × 15^4 /5^4 × 3^3
c) 3^9 - 2^3 × 3^7 + 2^10 × 3^2 - 2^13 / 3^10 - 2^2 × 3^7 + 2^10 × 3^3 - 2^12
d) (1/9)^10 : (1/3)^20
e) (1/64)^5 × (1/4)^7
2) Chung minh rang:
a)2014^100+2014^99 chia het cho 2015
b) 4^13+32^5-8^8 chia het cho 5
c) 81^27-27^9-9^13 chia het cho 405
Help me!! Pleass!!
thuc hien cac phep tinh sau ;
2va3/4 . (-0,4)+ 1va3/5 . 1,75 + (-7,2) : 9 / 11
1/8 . 15va2/5 + 1va4/5 . 7/8 - 17va 1/5 . 1/8
-5/7 . 2/11 + (-5) / 7 . 9/11 + 1va5/7
6/5 + 5/8 : 5 - 3/16 . (-2)3
thuc hien phep tinh
( 5*4^15*9-4*3^20*8^9) /( 5*2^9*6^19-7*2^29*27^6)
thuch hien cac phep tinh sau
a)-3/8:-9/16-7/6
b)75%-7/4+1,25 .2/5
c) 1,4 .15/49-( 4/5-2/3):11/5
d)(-1/2)-(15,4-39/5).25%
thuc hien cac phep tinh
1-2-3+4+5-6-7+...+2001-2002-2003+2004
cau 2:trong 1 phep chia neu ta gap doi so chi thi thuong cua phep chia cu gap ....... lan so voi phep chia cua moi
cau 3:1 lop hoc co hs chia thanh cac nhom moi nhom nhieu nhat 6 hshoi so nhom it nhat co the la .................
cau 4 : khi chia so a cho 8 duoc thuong la 125 so du la so du lon nhat co the
Thuc hien phep tinh :
-4/7 . 2/5 + 6/7 . -3/10
Help me !!!! Thanks