Chapter 8: Problem 8
Express the following statements using logarithms: (a) \(8^{2}=64\) (b) \(4^{3}=64\) (c) \(2^{6}=64\)
Chapter 8: Problem 8
Express the following statements using logarithms: (a) \(8^{2}=64\) (b) \(4^{3}=64\) (c) \(2^{6}=64\)
All the tools & learning materials you need for study success - in one app.
Get started for freeWrite the following using logarithms: (a) \(32=2^{5}\) (b) \(125=5^{3}\) (c) \(243=3^{5}\) (d) \(4^{3}=64\) (e) \(6^{2}=36\)
Solve (a) \(\mathrm{e}^{x}=5\) (b) \(\mathrm{e}^{x}=0.5\) (c) \(\mathrm{e}^{x}=25\) (d) \(\mathrm{e}^{x}=0.001761\)
The current in a circuit, \(i(t)\), is given by $$ i(t)=25 \mathrm{e}^{-0.2 t} \quad t \geq 0 $$ (a) State the current when \(t=0\). (b) Calculate the value of the current when \(t=2\) (c) Calculate the time when the value of the current is \(12.5\).
An amplifier has a gain of \(25 \mathrm{~dB}\). If the input voltage is \(15 \mathrm{mV}\) calculate the output voltage.
Express \(6 e^{x}+3 \mathrm{e}^{-x}\) in terms of the hyperbolic functions \(\sinh x\) and \(\cosh x\).
What do you think about this solution?
We value your feedback to improve our textbook solutions.