So sánh: 1.3.5....99 với \(\frac{51}{2}.\frac{52}{2}.\frac{53}{2}....\frac{100}{2}\)
So sánh : A = \(1.3.5.....99\) với B = \(\frac{51}{2}.\frac{52}{2}.\frac{53}{2}.....\frac{100}{2}\)
So sánh A = \(1.3.5.....99\) với B = \(\frac{51}{2}.\frac{52}{2}.\frac{53}{2}.....\frac{100}{2}\)
Bài Toán :
CMR : \(\frac{51}{2}.\frac{52}{2}.\frac{53}{2}.....\frac{100}{2}=1.3.5.....99\)
so sánh 1.3.5.7....99 với d=51/2 .52/2 .53/2 .....100/2
1.3.5....99=51/2 .52/2.....100/2
So sánh biểu thức C và D sau:
C = 1. 3. 5. 7 ... 99 với D = 51/2 . 52/2 . 53/2 ... 100/2
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CMR : 51/2 . 52/2 .....100/2 = 1.3.5......99
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 \(D=\frac{51}{2}.\frac{52}{2}.\frac{53}{2}.....\frac{100}{2}\)