You get zero on both sides, that's all fine. I allready know it's the same.
But if you have a function y=a^{x},
how do you get to y=e^{xlna} being the same thing?
It's not a homework, I just want to understand the e. Just don't know enough yet to grasp it.
Can someone help me prove that this is eaqual:
a^{x}=e^{xlna}
for example
10^{x}=e^{xln10}
How do you come from 10^{x} to e^{xln10}
Thanx.