calculus help please! The substituion rule.?
Evaluate the indefinite integral. (Remember to use ln(abs(u)) where appropriate.
Integral of : (sin(ln(25x)) / x dx
- 1 decade agoFavorite Answer
Let u = ln(25x). Then du = 25/(25x) dx = dx/x.
So you can now integrate sin(u)du.
This is -cos(u) + C = - cos(ln(25x)) + C
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