Các câu hỏi tương tự
tinh bang cach hop li
a) (1+1/51) x (1+1/52) x (1+1/53) .....( (1+1/1963)
b) (1+1/400) x (1+1/401) x (1+1/402) ...... (1-1/2010)
tinh bang cach hop li
a) (1+1/51) x (1+1/52) x (1+1/53) .....( (1+1/1963)
b) (1+1/400) x (1+1/401) x (1+1/402) ...... (1-1/2010)
Tinh bang cach hop li
1/2+1/4+1/8+1/16+1/32
Tìm x:
a) x + (x+1) + (x+2) +...+ (x+2010)= 2029099
b) 2 + 4 + 6 + 8 +...+ 2x = 210
2) So Sánh:
a)\(A=\frac{2009^{2008+1}}{2009^{2009+1}}vàB=\frac{2009^{2009+1}}{2009^{2010+1}}\)
b) C= 1.3.5.....99 với \(D=\frac{51}{2}.\frac{52}{2}.\frac{53}{2}.....\frac{100}{2}\)
a, Tìm tất cả các cặp số nguyên (x,y) thỏa mãn: x/2- 2/y=1/2
b,Tinh hợp lí: A=(1/2+1/12+1/30+...+1/9900) : (-6/51- 6/52- 6/53-...- 6/100)
Bai 1 :tinh nham bang cach hop li nhat
A,1+6+11+16+...+101
bai 2:tim x biet:
a,x+(x+1)+(x+2)+(x+3)+...+(x+99)=5150
giup minh voi !!!!!!
2/3*x-(1/2-3/4+5/6-7/8+...+197/198-199/200)=1/51+1/52+1/53+...+1/99+1/100
Tìm x
Thuc hien cac phep tinh mot cach hop li nhat:
1 + \(\frac{1}{2}\)x (1 + 2) +\(\frac{1}{3}\)x (1 + 2 + 3) + \(\frac{1}{4}\)x (1 + 2 + 3 + 4) +......+\(\frac{1}{20}\) x (1 + 2 +...+ 20)
Giải chi tiết hộ mình nha!!!!!!!!
Tìm x:
a) x+(x+1)+(x+2)+...+200+201=401
b) x+(x+1)+(x+2)+...+2009+2010=2010