The function `f(x)={2x+1 , x in Q and x^2-2x+5 , x in Q` is

The function f(x)={{:( 1, x in Q),(0, x notin Q):} , is

The function f(x)={{:( 1, x in Q),(0, x notin Q):} , is

" If the function "f(x)=[[x^(2)+px+1,,x in Q],[px^(2)+2x+q,,x in Q]" is continuous at "x=1" and "x=2," then "(p+q)" is equal to "

Function f(x)={-1,x in Q and 1,x!in Q is continuous at x=0

A function f(x) defined as f(x)={2x if x in Q,x^(2)+5 if x in Q' then the product of the pre-images of 8 and 14, is

If function f(x)=sqrt(2) when x in Q and 0 when x!in Q then (fof)sqrt(4)=

For a gt 0, if the function f(x)=2 x^(3) - 9 a x^(2) + 12 a^(2) x + 1 attains its maximum value at p and minimum value at q such that p^(2) - q then a =

let f(x)={2,x in Q),(-2,x!in Q), then

Let f:R rarr R be given by f(x)={"5x ,if x in Q ", "x^ 2 + 6",if x in R-Q then

Prove that the function f:Q rarr Q given by f(x)=2x-3 for all x in Q is a bijection.