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State which of the following sets are fi...

State which of the following sets are finite and which infinite :
(i) `{x:x` is a positive integral root of `x^(2)-2x-15=0}`
(ii) `{x:x` is human being in the world}
(iii) `{x:x` is a multiple of `3}`
(iv) `{x:x` is a real number between `a and 2}.`

Text Solution

Verified by Experts

The correct Answer is:
`{:((i),"Finite",(ii),"Finite"),((iii),"Infinite",(iv),"Infinite"):}`
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