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Express the following in logarithmic form. 4^2 = 16 - Mathematics

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Question

Express the following in logarithmic form.

42 = 16

Sum
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Solution

42 = 16

Taking log4 on both sides.

log4 42 = log4 16

2 log4 ​4 = log4 ​16  ...(Using the rule log am = m log a)

2 × 1 = log⁡4 16    ...(Since log⁡4 4 = 1)

2 = log⁡4 16

log4 16 = 2

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Chapter 7: Logarithms - EXERCISE 7A [Page 72]

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B Nirmala Shastry Mathematics [English] Class 9 ICSE
Chapter 7 Logarithms
EXERCISE 7A | Q 1. (i) | Page 72
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