Question

[My Dao]

so sánh:  C=1.3.5.7...99 với D= \(\frac{51}{2}.\frac{52}{2}.\frac{53}{2}...\frac{100}{2}\)

Answer 1

[LxP nGuyỄn hÒAnG vŨ]

-->C=\(\frac{1.2.3.4...99.100}{2.4.6....100}\)-->C=\(\frac{1.2.3...99.100}{\left(2.2....2\right)\left(1.2.3.4.5....50\right)}\)[50 chữ số 2]
-->\(C=\frac{51}{2}.\left(\frac{52}{2}\right)....\left(\frac{100}{2}\right)\)=D vậy C=D
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Answer 2

[Thiên Yết]

so sánh:  C=1.3.5.7...99 với D= 512 .522 .532 ...1002