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9LJT9X - 1
Calculation: 9LJT9X - 1
E
=
4
*
k
*
π
*
σ
E
=
4
*
k
*
π
*
σ
$$E$$
=
$$4\cdot k\cdot \pi\cdot \sigma$$
* σ* σ
* σ$$E$$ = $$4\cdot k\cdot \pi\cdot \sigma$$* σ$$E$$ = $$4\cdot k\cdot \pi\cdot \sigma$$* σ
* σ$$E$$ = $$4\cdot k\cdot \pi\cdot \sigma$$