Mathematics

If log10 2 = 0.3010 and log10 3 = 0.4771, then the value of log10 72 =

  1. 1.8572

  2. 0.8572

  3. 0.5872

  4. 1.5872

Logarithms

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Answer

Given,

⇒ log10 72

⇒ log10 (9 × 8)

⇒ log10 9 + log10 8

⇒ log10 32 + log10 2 3

⇒ 2log10 3 + 3log10 2

⇒ 2(0.4771) + 3(0.3010)

⇒ 0.9542 + 0.9030

⇒ 1.8572

Hence, option 1 is the correct option.

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