Question

If a,b belongs to s={1,2,3,6} and a+b = lcm (a,b),

a.B= gcd(a,b) and a1= 6/a , show that {s,+,.`1,6} is a boolean algebra

Answer 1

a 5 metre long ladder when set against the wall of a house is it a height of 4.8 M how far is the foot of the ladder from the wall