(21999+22004):(21990.29)=58
1+6+11+16+.........+2001+2006+20011=423418
(21999+22004):(21990.29)=58
1+6+11+16+.........+2001+2006+20011=423418
1+6+11+16+............+2001+2006+2011
A=1-6+11-16+21-26+...........+1991-1996+2001-2006+2010
thực hiện phép tính
a) 1+3+5+7+.....................................+31
b)1+6+11+16+......................................+2001+2006
S= 1*1!+2*2!+3*3!+...........+16*16!
giai toan bag may tinh casio day cac ban oi, giai giup mih nha. tinh ra ket wa chinh xac nha.
cac ban giup toi cau nay voi:
Thuc hien phep tinh(hop ly neu co the):
(10/99+11/199-12/299)x(1/2-1/3+-1/6)
mong cac ban giup minh nhanh voi a. Minh xin cam on
a=1+6+11+ . .. . ....+2001+2006
b=41.66+34.41/3+7+11......+79
Tính
A=1-2+3+4-5-6+7+8-9-.....+2007+2008-2009-2010
B=2^2005-2^2003-2^2001-......-2-1
C=2+4+4+8+10-12-14+16+......-2006+2008+2010-2012
D=1-2-3-4+5-6-7-8+9-10-11-......-2010
cac ban oi giup minh voi 3+6+9+.......+3333 noi cach giai luon nhe
Cac ban oi co duoc dang cac cau hoi ve cac mon khac ko vay