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Pilne na już daje najj !!! Zadania w załącznikach



Pilne Na Już Daje Najj Zadania W Załącznikach class=

Odpowiedź :

123bodzio

Odpowiedź:

zad 1

C = ( 4 , - 2 ) , D = ( 0 , 5 )

xc = 4 , xd = 0 , yc = - 2 , yd = 5

ICDI = √[(xd - xc)² + (yd - yc)²] = √[(0 - 4)² + (5 + 2)²] = √[(- 4)² + 7²] =

= √(16 + 49) = √65

zad 2

A = ( 2 , 7 ) , B = ( - 4 , - 8 )

xa = 2 , xb = - 4 , ya = 7 , yb = - 8

S = (xs , ys)

xs = (xa + xb)/2 = (2 - 4)/2 = - 2/2 = - 1

ys = (ya + yb)/2 = ( 7 - 8)/2 = - 1/2

S = ( - 1 , - 1/2 )

Jola6609

[tex]Zadanie\ 1\\\\\mid CD\mid=\sqrt{(x_D-x_C)^2+(y_D-y_C)^2}\\\\\mid CD\mid= \sqrt{(0-4)^2+[5-(-2)]^2}=\sqrt{(-4)^2+7^2}=\sqrt{16+49}=\sqrt{65}\\\\\\Zadanie\ 2\\\\ S=\((\frac{x_A+x_B}{2}\ ;\ \frac{y_A+y_B}{2})\\\\S=(\frac{2+(-4)}{2}\ ;\ \frac{7+(-8)}{2}) \\\\S=( \frac{-2}{2}\ ;\ \frac{-1}{2})\\\\S=(-1\ ;\ -\frac{1}{2})[/tex]

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