Question

dados os pontos distindos Q(5,2) R(1,3) Do Plano cartesino calcule a distançia emtre eles

Answer 1

$d(Q,R)= \sqrt{ (5-1)^{2}+ (2-3)^{2} }= \sqrt{16+1}= \sqrt{17}$$d(Q,R)= \sqrt{ ( x_{2}- x_{2} )^{2} +( y_{1}- y_{2} )^{2} }$