CMR : 31/2.32/2....60/2 = 1.3.5...59
CMR: 31/2.32/2...60/2=1.3.5...59
CMR:31/2.32/2.32/3...60/2=1.3.5...59
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Chứng minh rằng:
a)31/2.32/2.33/2....60/2=1.3.5....59
b)2!/3!+2!/4!+2!/5!+...+2!/n! < 1
chứng tỏ rằng
31/2+32/2+33/2+....+60/2=1.3.5....59
Chứng tỏ \(\frac{31}{2}.\frac{32}{2}...\frac{60}{2}=1.3.5...59\)
Chứng tỏ:
\(\frac{31}{2}.\frac{32}{2}.\frac{33}{2}.\frac{34}{2}....\frac{60}{2}=1.3.5....59\)
chứng tỏ: \(\frac{31}{2}.\frac{32}{2}.\frac{33}{2}......\frac{60}{2}=1.3.5......59\)
Chứng tỏ \(\frac{31}{2}\cdot\frac{32}{2}\cdot...\cdot\frac{60}{2}\)= 1.3.5.....59
