If A={a,b,c,d),B={s,t,u} and f={(a.s) (bu)(d,t)} then "f"
from A to B is
A) one-one function only
B) onto function only
C) Bijection
D) Not a function
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D) Not a function
A = {a, b, c, d}
B = {s, t, u }
f = {(a, s) (b, u) (d, t)
According to definition of function,
Every element of A must be used once then only f : A —> B is called function
But in above question, The element of A (c) is not used.
So, it's not a function
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