\(\frac{6}{5}.\frac{7}{6}.\frac{8}{7}.....\frac{2015}{2014}\)
=6/5.7/6.8/7....2013/2014.2015/2014
=2015/5
=403
****
\(\frac{6}{5}.\frac{7}{6}.\frac{8}{7}.....\frac{2015}{2014}\)
=6/5.7/6.8/7....2013/2014.2015/2014
=2015/5
=403
****
6/5 + 7/6 + 8/7 + 9/8 + ..... + 2015/2014 = ?
tính 6/5*7/6*8/7*........*2015/2014
Tim X biet X=6/5*7/6*8/7*....*2015/2014 ?
6/5*7/6*8/7*.....*2015/2014=X .Gia tri cua X la ?
Tính hợp lý:
A= 1+3+5+7+.............+2015
B=1+4+7+10+...........+2014
C=1+2+4+8+16+.........+2014
D=1+2-3-4+5+6-7-8+9+...................+197+198-199+200+201
tinh bang cach thuan tien nhat : 1+2-3-4+5+6-7-8+9+...+2013+2014-2015-2016
tìm chữ số tận cùng
S=1*3*5*7*..........*2017
P=1*2+2*3+3*4+4*5+5*6+6*7+.........+2014*2015+2015*2016
cách giải nữa nha
Tìm x biết 3+5+7+...+2015 / 2+4+6+....+2014 + x=1
7/10= ; 7/100=; 6 38/100=; 2014/1000=; 3/2=; 2/5=; 5/8=; 1 1/4=; 6 38/100=; 600/38=