Homework Statement
If A is a time dependent vector, calculate
[itex] \int_{t1}^{t2} dtA(t) \times \frac{d^2A}{dt^2} [\itex]
Homework Equations
The Attempt at a Solution
I think we should somehow relate it with something's derivative.
\int_{t1}^{t2}A(t)\frac{d^2A(t)}{dt^2}dt=...