Which of the following is true ?

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NIELIT Scientific Assistant ECE 5 Dec 2021 Official Paper
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  1. log17 275 = log19 375 
  2. log17 275 > log19 375 
  3. log17 275 < log19 375
  4. None of these

Answer (Detailed Solution Below)

Option 3 : log17 275 < log19 375
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Detailed Solution

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Given:

We need to check the truth value of: log17275 = log19375

Formula used:

Change of base formula: logab = log b / log a

Calculation:

log17275 = log(275) / log(17) ≈ 2.4393 / 1.2304 ≈ 1.983

log19375 = log(375) / log(19) ≈ 2.5740 / 1.2788 ≈ 2.012

⇒ log17275 ≠ log19375

⇒ log17275 < log19375

∴ Correct option is: 3) log17275 < log19375 

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