Grade 12th passDifferential CalculusLog (secx + tanx ) dx / cosx = log ( sec y + tan y )/ cos y dy Navanita Mahanty 9 Years agoGrade 12th pass
Arun9 Years agoif this question is to be proved then,we know if variable is changed then, no difference is generated. Example- integral of f(x) dx= integral of f(y) dyhence your question is proved