All one-one function are onto functions

All onto functions are one-one functions

Is cubic function a one-one function ?

Is an identify function one-one function ?

Let f:(-pi/2,pi/2)vecR be given by f(x)=(log(sec"x"+tan"x"))^3 then a) f(x) is an odd function b) f(x) is a one-one function c) f(x) is an onto function d) f(x) is an even function

Define one to one function?

Let f:R->R and g:R->R be two one-one and onto functions such that they are mirror images of each other about the line y=a . If h(x)=f(x)+g(x) , then h(x) is (A) one-one onto (B) one-one into (D) many-one into (C) many-one onto

Check whether the following functions are one to one and onto (i) f:NtoN defined by f(x) = x +3.

Is quadratic function a one-one function ?

Let f: RrarrRa n dg: RrarrR be two one-one and onto function such that they are the mirror images of each other about the line y=a . If h(x)=f(x)+g(x),t h e nh(x) is (a)one-one and onto (b)only one-one and not onto (c)only onto but not one-one (d)neither one-one nor onto

Check whether the following functions are one to one and onto (ii): Ncup(-2,-1, 0)toN defined by S(x) = x +3.