state which of the following are one-one and onto function `f:R->R` defined by `f(x)=2x+1`

State which of the following functions are one-one and why? f:R.{1}toR defined by f(x)=(x+1)/(x-1)

State which of the following functions are one-one and why? f:R^(+)toR^(+) defined by f(x) =1+x^(2)

State which of the following functions are one-one and why? f:R^(+)toR^(+) defined by f(x) =1+x^(2)

Which of the following functions are one-one? f:R rarr R defined by f(x)=-|x|

State whether the following function is one-one onto or bijective: f:RrarrR defined by f(x)=1+x^(2) .

Check whether the following for one-to-oneness and ontoness. (i) f: R to R" defined by f(x)="1/x (ii) f: R-{0}" defined by f(x)"=1/x .

Which of the following functions are onto? f:R rarr R defined by f(x)=2x+5

Which of the following function is one-one and onto both? f:R rarr R,f(x)=e^(x)

In each of the following cases, state whether the function is one-one, onto or bijective. Justify your answer.(i) f : R->R , defined by f (x) = 3 4x (ii) f : R->R , defined by f(x) =1+x^2

In each of the following cases , state whether the function is one - one , onto or bijective. Justify your answer. f : R rarr R defined by f(x) = 1+x^2