" If "f:Z rarr Z" is such that "f(x)=6x-11" then "f" is "

If f: Z rarrZ is defined as f(x) =x^3 ,then function f is

Let f:R rarr R be a function such that f(x)=x^(3)-6x^(2)+11x-6. Then f(x) is

If f(x) is function such that f(x)=(z-1)^(2)(4-x), then

If F:Z rarr Z , and F(x)=x^2 then (a)F(x) is one one (b)F(x) is onto (c)F(x) is bijective (d)F(x) is neither one one nor onto

Give examples of two functions f:N rarr Z and g: Z rarr Z such that gof is injective but g is not injective. (Hint : Consider f(x) = x and g(x) = |x| ) .

Let f : R rarr R be such that f is injective and f(x) f(y ) = f(x+ y)forall x,y in R. If f(x),f(y),f(z)are in G .P.,then x, y, z are in

If f:R rarr R defined by f(x)=x^(2)-6x-14 then f^(-1)(2)=

Let f : R rarr R be such that f is is injective and f(x) f(y) = f(x + y) for all x , y in R . If f(x), f(y), f(z) are in G.P. then x , y , z are in

Discuss the surjectivity of f:Z rarr Z given by f(x)=3x+2 for all x in Z