Các câu hỏi tương tự
1, Tinh hop ly
12-12+11+10+-9+8-7+5-4+3+2-1=????
Giúp mình nha !
Tinh hop ly
6 3/8 + 5 1/2
3/11 . 31/6 3/11. 19/6
1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+4+...+16) ? tinh hop ly
thuc hien cac phep tinh sau 1 cach hop ly (3.4.2^16)^2/11.2^13.4^11-16^0
bai 1 tinh nhanh 2.53.12+4.6.87-3.8.40
5.7.77-7.60+49.25-15.42
bai 3 tinh gia tri bieu thuc 1 cach hop ly
b,B=1+2-3-4+5+-7-8+9+10-11-12+......-299-300+301+302
bai 4 tong cua 2 so tu nhien gap 3 lan hieu cua chung tim thuong cua ba so ay
BAN NAO GIAI DUOC TAT CA CHO 3 TICK 1BAI CHO 1 TICK 2 BAI CHO 2 TICK
2-5+8-11+14-...+2012-2015
tinh hop ly ay nha
ai dung minh k cho
tinh hop ly a=1/1*2+1/2*3+...+1/9*10
tinh hop ly
A=1+1/2(1+2)+1/3(1+2+3)+1/4(1+2+3+4)+...+1/16(1+2+3+...+16)
ghi ro cach lam nha
mik tick cho
Tinh hop ly gia tri cac bieu thuc sau
c) \(6\frac{5}{12}:2\frac{3}{4}+11\frac{1}{4}.\left(\frac{1}{3}-\frac{1}{5}\right)\)
d) \(\left(\frac{3}{5}+0,415-\frac{3}{200}\right).2\frac{2}{3}.0,25\)