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@Apu
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.sorted please close this out
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what is answer tho?
This would be easier disproved with examples I feel.
(f+g)(4) = 2+4+1 = 7
(f+g)(5) = 1+5+1 = 7
Hence it's not one-one
As for onto, there is no number in \mathbb{N}-{1} such that f+g applied on it gives the output 1.
Therefore it's neither one-one nor onto.
f(4) = highest exponent in prime factorisation of 4, which is 2², so the highest exponent is 2.
f(5) is same for 5¹, so the highest exponent is 1.
yeaaaaaaaaaa
exactly
+solved @Phalawor
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACHEATING
MAINE KARLIYA THA SOLVE
+solved @Opt
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