Ответ:
Объяснение:
1) A(-3;-12) , B((1;-8)
S(AB)=( (-3+1)/2) ; (-12-8)/2 )= (-2/2 ; -20/2) = (-1;-10)
2) A(9;-2) , B(-7;-2)
A(AB)=( (9-7)/2 ; (-7-2)/2 ) = (2/2 ; -9/2 ) = (1;-4,5)
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Ответ:
Объяснение:
1) A(-3;-12) , B((1;-8)
S(AB)=( (-3+1)/2) ; (-12-8)/2 )= (-2/2 ; -20/2) = (-1;-10)
2) A(9;-2) , B(-7;-2)
A(AB)=( (9-7)/2 ; (-7-2)/2 ) = (2/2 ; -9/2 ) = (1;-4,5)