Question

Question #25635

Answer 1

`E = 0 =` Constant

Explanation:

`E= cosx sin ( y-z) + cosy sin ( z-x)+ cosz sin (x-y)`

Using the identity

`sin(a-b)=sin(a)cos(b)-sin(b)cos(a)` and expanding `E` we obtain the result

`E = 0`