log 2 + log 4 + log 8 + log 16 + .............. ধারাটির প্রথম ১০টি পদের সমষ্টি কত?
Created: 6 years ago |
Updated: 2 years ago
best des
log 2 + log 4 + log 8 + log 16 ....
= log 2 + 2log 2 + 3log 2 + 4log 2 ...
= log 2(1 + 2 + 3 + 4 + ... + 10)
= log2{ (10 + 1)10}/2
= 55 log2
Md Azizur Rahman
Founder of Satt
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