Question

me pueden ayudar...?

Answer 1

Formula de un segmento en una razón dada:

X=(x1+rx2)/r+1

Y=(y1+ry2)/r+1

a) A(-1,2), B(3,1), em r=1

x1= -1

x2=3

y1=2

y2=1

r=1

X=(x1+rx2)/r+1

X=(-1+[1{3}])/1+1

X=(-1+3)/2

X=2/2

X=1

Y=(y1+ry2)/r+1

Y=(2+[1{1}])/1+1

Y=2+1/2

Y=3/2

P=(x,y)

P=(1,3/2)

b) P1(2,3), P2(-5,3), en r=2/3

x1= 2

x2=-5

y1=3

y2=3

r=2/3

X=(x1+rx2)/r+1

X=(2+[2/3{-5}])/2/3+1

X=(2+[2/3{-15/3}]/2/3+3/3

X=(2-30/3)/5/3

X=(4/3)/5/3

X=12/15

X=4/5

Y=(y1+ry2)/r+1

Y=(3+[2/3{3}])/2/3+1

Y=(3+[2/3{9/3}])/2/3+3/3

Y=(3+18/3)/5/3

Y=(9/3+18/3)/5/3

Y=27/3/5/3

Y=9/5/3

Y=27/5

P=(x,y)

P=(4/5,27/5)

ya la última se hace igual.