## Simplify expressions with Kronecker delta

Here you practice the properties of the Kronecker delta by simplifying given expressions as much as possible.

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- Physics: Quests with solutions

Here you can solve 2 **tasks in physics** to **gain experience**, as well as to test your acquired **knowledge** and above all to consolidate this **knowledge**. You can then compare your solution with the standard solution attached to the exercise. Even if you have difficulties in solving the problem, you can at least try to reproduce the attached solution.

Here you practice the properties of the Kronecker delta by simplifying given expressions as much as possible.

In this problem (with solution) you have to derive the torsion tensor and then the expression for Christoffel symbols with torsion.