Find the distance between (a + 2, b) and (b + 2, a), given that a > b.
Distance =
√ [ ( (a + 2) - (b + 2) )^2 + )a - b)^2 ] =
√ ( a + 2 - b - 2)^2 + ( a - b)^2 ] =
√ ( a- b)^2 + (a - b)^2 ] =
√ [2 (a - b)^2 ] =
(a - b)√2