If `f: AvecB` is an injection such that range of `f={a}dot` Determine the number of elements in `Adot`

If f:A rarr B is an injection such that range of f={a}. Determine the number of elements in A.

The atomic number of 5f series range from

Write the range of the real function f(x)=|x|dot

Let m be the number of elements in the domain of f(x) and n be the number of elements in the range of f(x) where f(x)=sin^(-1)[sec(3tan^(-1)x)]+cos^(-1)[cos ec(3cot^(-1)x)] ,then the value of (m+n) is:

If f:x rarr y, where x and y are sets containing natural numbers,f(x)=(x+5)/(x+2) then the number of elements in the domain and range of f(x) are,respectively.(a) 1 and 1( b) 2 and 1(c)2 and 2(d)1 and 2

Let f be real valued function from N to N satisfying. The relation f(m+n)=f(m)+f(n) for all m,n in N . If domain of f is first 3m natural numbers and if the number of elements common in domain and range is m, then the value of f(1) is

The number of partially filled shell in f-block elements are