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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Deepak singh 1
take (π,1/π) belongs to R^2 and π×1/π = 1 which belongs to Z , thus it implies this set contains irrational no. also and irrational are uncountable , so given set is uncountable .
sir then it should also be uncountable as √8,√2 € R and their product is √(16)=4 € Q and since set of irrational numbers so uncountable ....but ans given is countable
sir pls tell my mistake..
wait..
it should be uncountable also , because this set is containing irrational also..
if you have any explanation proving countable then you please share..
ok sir .
feel free to ask again..
sir this explanation is there in book
but i did not got for option c and d
Dear , in option d , there is a,b not a.b
oohh..i got it sir..
since there is a,b . So it will be countable ..