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Hints: Limit of a power = Power of the limit. Limit of a sum = Sum of the limit.
i did not get
A square root is the same as taking to the power of . So now use the fact that the limit of the power is the same as the power of the limit.
May be that there is a '+' instead of a '-' and the limit is... (1) In that case is... (2) Kind regards
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