Shreshtha55 wrote:
chetan2u can you explain this question please. In option B f x=1 and y=0 then clearly x will be equal to 1 and even in option A if x=1 then whatever is the value of y we will always get value 1. I don't get it how the ans is E. What am I missing here?
Hi,
The question is asking for MUST be true.
Say x=-1 and y=2,\((-1)^2=1\) ..
Thus none of the options is necessarily or MUST be true, as we can get x^y=1 from other values too.
Now, what mistake you are doing is taking MUST be true as CAN
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