Question

let a and b are positive integers such that a divides b and b divides a .show tha a=b​

Answer 1

Answer:If a and b are integers, we say a divides b if there exists an integer k so that b=ak. Thus:

b=ak

a=bj

a=akj

kj=1

Since a divides b and b divides a, we know that k,j must both be integer, which means k and j must both equal 1 or -1. This means:

Step-by-step explanation: