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Question
Find the logarithm of : 0.001 to the base 10
Sum
Solution
Let log100.001 = x
∴ 10x = 0.001
⇒ 10x = `1/1000`
⇒ 10x = `1/10^3`
⇒ 10x = 10-3
⇒ x = - 3 ......[ If am = an ; then m = n ]
∴ log100.001 = - 3
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Interchanging Logarithmic and Exponential Forms
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