Question

if a square + b square is equal to 41 and a b is equal to 4 find the value of a minus b

Answer 1

Given,

a^2+b^2=41

ab=4

so,(a-b)^2=a^2+b^2-2ab

substituting the values

(a-b)^2=41-2.4

=41-8

=33

(a-b)=√33

Answer 2

given that AB = 4
A -B = root of 33