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प्रश्न
If log1025 = x and log1027 = y; evaluate without using logarithmic tables, in terms of x and y: log105
योग
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उत्तर
log1025 = x
⇒ log1052 =x
⇒ 2log105 = x
⇒ log105 = `x/(2)`.
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Expansion of Expressions with the Help of Laws of Logarithm
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