Using Log Laws and values to compute this compution

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Either way, you can then use a calculator to evaluate the expression and obtain the answer of $9.507*10^{-4}$ in scientific notation.
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cbarker1
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Using logs to compute the following, to the four-figure accuracy. $\frac{.009292}{(\sqrt[3]{582400}+14.23)}$

Let N=$\frac{.009292}{(\sqrt[3]{582400}+14.23)}$, then
$\log\left({N}\right)=\log\left({\frac{.009292}{(\sqrt[3]{582400}+14.23)}
}\right)$.

Log N=

$\log\left({.09292}\right)-\log\left({\sqrt[3]{582400}+14.23}\right)$

What to do with the logarithm after the subtraction sign?the answer in the back of the book is 9.507*10^(-4)
 
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Cbarker1 said:
Using logs to compute the following, to the four-figure accuracy. $\frac{.009292}{(\sqrt[3]{582400}+14.23)}$

Let N=$\frac{.009292}{(\sqrt[3]{582400}+14.23)}$, then
$\log\left({N}\right)=\log\left({\frac{.009292}{(\sqrt[3]{582400}+14.23)}
}\right)$.

Log N=

$\log\left({.09292}\right)-\log\left({\sqrt[3]{582400}+14.23}\right)$

What to do with the logarithm after the subtraction sign?

You might substitute:
$$\sqrt[3]{582400} = 10^{\log(\sqrt[3]{582400})} = 10^{\frac 1 3 \log 582400}$$
 

Related to Using Log Laws and values to compute this compution

1. How do I determine which log law to use for a specific computation?

The log laws used for computation depend on the specific numbers and operations involved. The most commonly used laws are the product rule, quotient rule, and power rule. It is important to carefully analyze the numbers and operations in the computation to determine which law is most suitable.

2. Can I use log laws to simplify complex computations?

Yes, log laws can be used to simplify complex computations involving large numbers or multiple operations. By applying the appropriate log laws, the computation can be broken down into simpler steps, making it easier to solve.

3. Are there any limitations to using log laws for computation?

While log laws can be useful for simplifying computations, they may not always be suitable for all types of calculations. For example, logarithms cannot be used to compute negative numbers or numbers with a value of zero. It is important to keep these limitations in mind when using log laws for computation.

4. How do I know if my final computation using log laws is correct?

You can check the accuracy of your computation by using a calculator or by using the reverse operation, which is exponentiation. Simply plug in your final answer and see if the result matches the original numbers used in the computation.

5. Is it necessary to memorize all the log laws for computation?

While it is helpful to have a basic understanding of the log laws and how they work, it is not necessary to memorize them. Most scientific calculators have built-in functions for logarithms and their corresponding laws, making it easy to plug in the numbers and obtain the correct answer.

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