Evaluate ∫xcos(x2)dx\int x \cos(x^2) dx∫xcos(x2)dx using u=x2u = x^2u=x2. What is the integral in terms of uuu?
12∫cos(u)du\frac{1}{2} \int \cos(u) du21∫cos(u)du
12∫sin(u)du\frac{1}{2} \int \sin(u) du21∫sin(u)du
∫cos(u)du\int \cos(u) du∫cos(u)du
2∫cos(u)du2 \int \cos(u) du2∫cos(u)du