K=2.(2/2.4+2/4.6+2/6.8+...+2/2008.2010)
K=2.(4-2/2.4+6-4/4.6+8-6/6.8+...+2010-2008/2008.2010)
K=2.(1/2-1/4+1/4-1/6+1/6-1/8+...+1/2008-1/2010)
K=2.(1.2-1.2010)
K=2.502/1005
K=1004/1005
K=2.(2/2.4+2/4.6+2/6.8+...+2/2008.2010)
K=2.(4-2/2.4+6-4/4.6+8-6/6.8+...+2010-2008/2008.2010)
K=2.(1/2-1/4+1/4-1/6+1/6-1/8+...+1/2008-1/2010)
K=2.(1.2-1.2010)
K=2.502/1005
K=1004/1005
tính
K= 4/2.4 + 4/4.6 + 4/6.8+...+ 4/2008.2010
Thực hiện dãy tính ( tính nhanh nếu có thể)
K=4/2.4 + 4/4.6 + 4/6.8 + ... + 4/2008.2010
Thực hiện dãy tính ( tính nhanh nếu có thể)
K=4/2.4 + 4/4.6 + 4/6.8 + ... + 4/2008.2010
F=4/2.4+4/4.6+4/6.8+..........+4/2008.2010
C = 4/2.4+4/4.6+4/6.8+ ...... + 4/2008.2010
Tính A=4/2.4+4/4.6+4/6.8+....+4/2008.2010
Tính:
F= 4/2.4+4/4.6+4/6.8+...+4/2008.2010
Tính : K = 4/2.4 + 4/4.6 + 4/6.8 +....+ 4/2008.2010
F = 1/18 + 1/54 + 1/108 + ...+ 1/990
Tính nhanh \(K=\frac{4}{2.4}+\frac{4}{4.6}+\frac{4}{6.8}+...+\frac{4}{2008.2010}\)