let A={1,2,3,4,5,6,7},B={v,w,x,y,z}.determine the no.of functions F from AtoB where F(A)={v,x}

Question

thi is a question from discrete mathematical structures

Answer 1

Given A = {1,2,3,4,5,6,7}

B = {v,w,x,y,z}

F(A) = B

a function is relation from domain set to range set ,where each element of the domain set is related to exactly one element of the range set.

F:A --> B where F(A) = {v,x}

The elements in A  are mapping either x or v.

Functions are either {(1.v)(2,v)(3,v),(4,v),(5,v),(6,v),(7,v)} or

{(1,x),(2,x),(3,x),(4,x),(5,x),(6,x),(7,x)}