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-logt=0.064 t?

Guest Apr 15, 2015

Best Answer 

 #2
avatar+93683 
+10

Here is the graph that Bertie is talking about:)

https://www.desmos.com/calculator/ji4yx6xxwv

Melody  Apr 17, 2015
 #1
avatar+890 
+10

This is a non-linear equation, and requires a numerical method for its solution, Newton-Raphson for example.

A simple sketch graph (y = log(x) and y = -0.064x), shows that there is a single root and that its value will be slightly less than 1.

Rather than use a numerical method, you could simply use one of those clever graph plotters.

The root turns out to be 0.87856 5dp.

Bertie  Apr 17, 2015
 #2
avatar+93683 
+10
Best Answer

Here is the graph that Bertie is talking about:)

https://www.desmos.com/calculator/ji4yx6xxwv

Melody  Apr 17, 2015

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