Question

p (a + b , a - b ) and Q (a - b , a + b )

Answer 1

What should we do from that given points

If we have to find the distance between PQ so,

By distance formula,

PQ = √ [ (a-b-a-b) ^2 + (a+b-a+b) ^2]

= √ [ (-2b) ^2 + (2b) ^2]

= √ (4b^2 +4b^2)

= √ (8b^2)

= 2b√2
Hope it will help you