@N Sai Shyam ( 6302909589 )
at n = 1,
at n=2,
as we can see 1+1/n < 2, and 3-1/n >2.
so the intersection in which this range lies is at minimum range of which is at n = 1.
if you ask me about union it will be at n-> , which is (1,6)
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