Log A/Ao: Question About Result

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Hi i want to know if the log(10)(A/Ao)^10 gives 10*logA/Ao or 1 or 0
 
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dervast said:
Hi i want to know if the log(10)(A/Ao)^10 gives 10*logA/Ao or 1 or 0
\log{\left(\left[\frac{A}{A_0}\right]^{10}\right)}=10\left(\log{A}-\log{A_0}\right)
 

Thread 'Family of lines that are at a distance of 5 from the origin'

I picked up this problem from the Schaum's series book titled "College Mathematics" by Ayres/Schmidt. It is a solved problem in the book. But what surprised me was that the solution to this problem was given in one line without any explanation. I could, therefore, not understand how the given one-line solution was reached. The one-line solution in the book says: The equation is ##x \cos{\omega} +y \sin{\omega} - 5 = 0##, ##\omega## being the parameter. From my side, the only thing I could...
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