# Math Help - Prove the divergence is equal to zero

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2. ## Re: Prove the divergence is equal to zero

You can see straight away that $\nabla \times \omega$ is orthogonal to $\nabla$, so the dot product is zero (remember the definition of divergence).

3. ## Re: Prove the divergence is equal to zero

solved, thanks

4. ## Re: Prove the divergence is equal to zero

That's a perfectly acceptable answer to me.