If `f: A->B and g: B->C` are onto functions show that `gof` is an onto function.

If f: A->B and g: B->C are onto functions, show that gof is an onto function.

If f:A rarr B and g:B rarr C are onto functions show that gof is an onto function.

Let f : A rarr B and g : B rarr C be onto functions, show that gof is an onto function.

If f: A->B and g: B->C are one-one functions, show that gof is one-one function.

If f:A rarr B and g:B rarr C are one-one functions,show that gof is one-one function.

Let f : A rarr B, g : B rarr C be two functions such that gof is one-one and onto. Show that f is one-one and g is onto.

Onto function (Surjective function) and Into functions

Let f: A to B and g: B to C be two functions. Then; if gof is onto then g is onto; if gof is one one then f is one-one and if gof is onto and g is one one then f is onto and if gof is one one and f is onto then g is one one.

Let f: A to B and g: B to C be two functions. Then; if gof is onto then g is onto; if gof is one one then f is one-one and if gof is onto and g is one one then f is onto and if gof is one one and f is onto then g is one one.