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Thursday, September 12, 2013

The vector j5E is same as vector

The vector  j5E is same as vector

A.   jE
B . j E
C.  JE
D.  JE


Explanatory answer :


We know j2=-1


and     j5=j2*j2*j


j5= (-1) *(-1)* (j)= j

therefore  jE can be written as  j E

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