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The answers given in options A,B,C,D and E are of the form (X,Y)
So all you have to do is replace these options in the given question and see if they satisfy
Option A is (1/2 ,- 3)
So substituting this in
which we know is not True
so Option A is not an answer
Check option B
By Law of Indices
So we get
which we know is True
So Option B is a definite answer
Can you check for the other options?