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Evaluate 3/(0.534) using logarithms.
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Step 1: Let the given expression be .
We can write this as:
Step 2: Take the logarithm of both sides.
Using the logarithm property :
Using the logarithm properties and :
Step 3: Find the logarithms of each number using a 4-figure logarithm table.
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For : Characteristic: There are 2 digits before the decimal point, so the characteristic is . Mantissa: From log tables, the mantissa for 453 is 0.6561. So, .
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For : Characteristic: The first non-zero digit (6) is in the third decimal place, so the characteristic is (or -3). Mantissa: From log tables, the mantissa for 697 is 0.8432. So, .
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For : Characteristic: The first non-zero digit (5) is in the first decimal place, so the characteristic is (or -1). Mantissa: From log tables, the mantissa for 534 is 0.7275. So, .
Step 4: Substitute these values into the equation for and perform the arithmetic.
First, calculate the sum of the logarithms in the numerator:
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