Question

se x = - ( -1 - 1/4 ) e y = - ( 1/4 -1 ) , quando da x . y me ajudaaaa pessoal !!!!!!!!!

Answer 1

X=-(-1-1/4)
X=-(-4/4-1/4)
X=-(-5/4
X=5/4

Y=-(1/4-1)
Y=-(1/4-4/4)
Y=-(-3/4)
Y=3/4

X.Y=5/4.3/4=15/16

XY=15/16