Question 318554
I need to find log a 0.25 with the given values of log a 2=0.431 and log a 8=1.292 The problem should read as the logarithm of .25 with a base of a. 

{{{log(a,(0.25))}}}{{{"="}}}{{{log(a,(1/4))}}}{{{"="}}}{{{log(a,(2/8))}}}{{{"="}}}{{{log(a,(2))-log(a,(8))}}}{{{"="}}}{{{0.431-1.292}}}{{{"="}}}{{{-0.861}}}

Edwin</pre>