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If Log 10 X = A, Express the Following in Terms of X: 102a -3 - Mathematics

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Question

If log 10 x = a, express the following in terms of x: 102a -3 

Sum

Solution

102a -3 
log 10 x = a
⇒ x = 10 a 
∴ 102a -3 
= 102a . 10-3 
= (10 a)2 10-3
= `x^2/(1000)`.

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Interchanging Logarithmic and Exponential Forms - Logarithmic to Exponential
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Chapter 10: Logarithms - Exercise 10.1

APPEARS IN

Frank Mathematics [English] Class 9 ICSE
Chapter 10 Logarithms
Exercise 10.1 | Q 5.4
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