Evaluate the definite integral using u sub with natural log

The video tutorial explains the substitution method in integration, starting with setting up the substitution and determining the bounds. It then walks through the integration process, highlighting the ease of calculation once the setup is complete. The tutorial concludes by discussing the final calculation and emphasizes that finding an exact value is not necessary in non-calculator sections.

Why does the speaker mention that they didn't calculate the result?

What is the importance of not needing to finalize the answer in the non-calculator portion?