Найдите ρ(x,y), если:
а) x = −1,8, y = 1,5;
б) x = −14, y = −23;
в) x = 0,5, y = 7,4;
г) x = 5,9, y = −6,8.
ρ(x,y) = |−1,8 − 1,5| = |−3,3| = 3,3
ρ(x,y) = |−14 − (−23)| = |−14 + 23| = |9| = 9
ρ(x,y) = |0,5 − 7,4| = |−6,9| = 6,9
ρ(x,y) = |5,9 − (−6,8)| = |5,9 + 6,8| = |12,7| = 12,7