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(Solve the problem & round the final answer to four decimal places.)

(Solve the problem & round the final answer to four decimal places.)-example-1
User Chikak
by
2.4k points

1 Answer

20 votes
20 votes

Given: The logarithm below


log_7√(3)

To Determine: The solution of the given

Solution

Using exponent rule below


√(a)=a^{(1)/(2)}

Applying the exponent rule above to the given logarithm


\begin{gathered} log_7√(3) \\ √(3)=3^{(1)/(2)} \\ Therefore \\ log_7√(3)=log_73^{(1)/(2)} \end{gathered}

Using logarithm rule to the given


\begin{gathered} log_ab^x=xlog_ab \\ Therefore \\ log_73^{(1)/(2)}=(1)/(2)log_73 \end{gathered}

Let us apply change of base as shown below


log_73=(log_e3)/(log_e7)
\begin{gathered} Log_e3=ln3=1.09861 \\ log_e7=ln7=1.94591 \\ log_73=(log_e3)/(log_e7)=(ln3)/(ln7)=(1.09861)/(1.94591)=0.56457 \end{gathered}

Therefore, we have


log_7√(3)=(1)/(2)log_73=(1)/(2)*0.56457=0.28228\approx0.2823(4decimal-place)

Hence, the final answer is approximately 0.2823

User AlexArgus
by
3.1k points
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