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Question
Difficulty Level:

Medium

MCQ

What is the value of
(∑k=120log5k3k2)⋅(∑k=1100log9k25k)?(\sum{k=1}^{20} \log {5^{k}} 3^{k^{2}}) \cdot(\sum{k=1}^{100} \log {9 k} 25^{k}) ?

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