Show that the function `f : R ->R`, defined as `f(x)=x^2`, is neither one-one nor onto.

Show that the function f:R rarr R defined as f(x)=x^(2) is neither one-one nor onto.

Show that the function f;R-.R defined by f(x)=cos(5x+2) is neither one-one nor onto ?

Show that the function f:RrarrR defined by f(x)=x^(2) is neither one-one nor onto.

Show that the function f:R rarr R defined by f(x)=x^4+5 is neither one one nor onto

Show that the function f:R rarr R defined by f(x)= absx is neither one one nor onto

Show that the function f : R rarr R defined by f(x) = cos (5x+3) is neither one-one not onto.

Show that the modulus function f:R rarr R , given by f(x)=|x| is neither one-one nor onto.

Show that the fucntion f : R to R : f (x) =x^(4) is neither one-one not noto.

Show that the function f:RrarrR defined by f(x)=(x)/(x^(2)+1),AAx inR is neither one-one nor onto. Also, if g:RrarrR is defined as g(x)=2x-1 , find fog(x).

Prove that the function F:N rarr N, defined by f(x)=x^(2)+x+1 is one-one but not onto.