Logarithms Practice Test 2

Question : 33 of 39

Marks: +1, -0

\log_10 10 + \log_10 100

+ .... + \log_10 1 0000...0(\upto n 0)

is equal to:

Solution:

\log_10 10 + \log_10 10^2 + .... + \log_10 1 0^n

=1+2+...+n={n(n+1)}/2

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