Which of these is an antiderivative of $2x\cos(x^2)$?

Explanation

1. 01

   An antiderivative $F$ is any function with $F'(x)$ equal to the given function.

2. 02

   $\frac{d}{dx}\sin(x^2) = \cos(x^2) \cdot 2x$, which is the given function.