markosheehan Posted September 4, 2016 Share Posted September 4, 2016 consider the function y=a^x where a is a constant. show that x= ln y/ ln xi tried using the log formula but i have had no luck can someone help me please Link to comment Share on other sites More sharing options...
blue89 Posted September 4, 2016 Share Posted September 4, 2016 Hi Are you sure whether you have written some parameters incorrect or not? 1 Link to comment Share on other sites More sharing options...
studiot Posted September 4, 2016 Share Posted September 4, 2016 Yes he has miscopied. +1 Hi Are you sure whether you have written some parameters incorrect or not? mark please review your first post and correct it. Link to comment Share on other sites More sharing options...
Country Boy Posted September 10, 2016 Share Posted September 10, 2016 If y= a^x then ln(y)= x ln(a) so that x= ln(y)/ln(a), not ln(y)/ln(x). (Why was this titled "integration"?) Link to comment Share on other sites More sharing options...
Rajesh Bhuria Posted October 12, 2016 Share Posted October 12, 2016 y=ax Taking ln on both the sides ln(y)=ln(ax) ln(y)=x ln(a) so, x=ln(y)/ln(a) x not equals to ln(y)/ln(x) Link to comment Share on other sites More sharing options...
Sriman Dutta Posted October 14, 2016 Share Posted October 14, 2016 Hi mark, x=ln y/ln x only if y=x^x . Besides, if we want to find the value of x, then how can x be in right hand side? Link to comment Share on other sites More sharing options...
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