Question

considere os pontos A(0.-3)e b(4,0)determine a distancia entre eles

Answer 1

dAB = $\sqrt{[ (yb-ya)^{2} + (xb-xa)^{2} ]}$

dAB =$\sqrt{[ (0+3)^{2}+ (4-0)^{2} ]}$

dAB =$\sqrt{9+16}$
dAB =$\sqrt{25}$

dAB = 5