(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

[tex]\int[/tex]10[tex]^{t}[/tex]dt t = [1,2]

2. Relevant equations

I know that [tex]\int[/tex](a[tex]^{x}[/tex])dx = [tex]\frac{(a^x)}{ln(x)}[/tex] + C and x[tex]\neq[/tex] 1

3. The attempt at a solution

I could do this problem as indefinate, but since the restraints include a "1", I can't plug it into the the integral because it will result in a "0" being in the denominator. The answer in the back of the book shows:

[tex]\frac{90}{ln(10)}[/tex]

Should I be using a substitution rule somewhere?

**Physics Forums | Science Articles, Homework Help, Discussion**

Dismiss Notice

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Help with definate integration problem

**Physics Forums | Science Articles, Homework Help, Discussion**