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2. Scientific notations of real numbers and logarithms
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Q6 of 124 Page 37

Evaluate:

Let


Taking log on both side,


(since, log an = n log a)



(∵ log a÷ b = loga – log b)



(∵ log a × b = loga + log b)




⇒ log x = –0.2255


⇒ x = antilog (–0.2255) = antilog ̅0.2255 = 0.5948


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Questions · 124
2. Scientific notations of real numbers and logarithms
1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 1 2 2 2 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 5 5 5 5 5 5 6 6 6 6 6 6 7 7 7 7 7 7 7 7 8 9 9 9 9 9 9 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 3 3 4 4 4 4 4 4 5 6 6 6 6 6 6 6 6 6 6 6 6 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10
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