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Solve for x: log_2 x = 3 - Mathematics

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Question

Solve for x:

log2 x = 3

Sum
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Solution

Given: log2 x = 3

Step-wise calculation:

Convert to exponential form using the definition

logb(a) = c ⇔ bc = a,

So x = 23.

⇒ x = 8.

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Chapter 7: Logarithms - Exercise 7A [Page 140]

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Nootan Mathematics [English] Class 9 ICSE
Chapter 7 Logarithms
Exercise 7A | Q 5. (i) | Page 140
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