Question

if a is equals to 2 + root 5 upon 2 minus root 5 and b is equals to 2 minus root 5 upon 2 + root 5 then find the value of a square minus b square​

Answer 1

Answer:

0

Step-by-step explanation:

a=(2+root 5)(2-root 5)

=4-5

=-1a

=-1

similarly b=-1

a-b =0