I tried substituting u=2x in and solving it , but it didnt work. Can someone please help me get started? Thanks
Follow Math Help Forum on Facebook and Google+
show what you did so maybe someone can see why "it didn't work" ...
If you changed the base from 13 to e, would that help?
Originally Posted by nubshat I tried substituting u=2x in and solving it , but it didnt work. Can someone please help me get started? Thanks Hint: $\displaystyle (13^2)^x=169^x$ I gues now you know who's the "u".
use the substitution y = 169^x ln y = x ln 169 (1/y) dy/dx = ln 169 dx = (1/ln 169) (dy/y) Now integrate. Hope this helps.
View Tag Cloud