Предмет: Математика, автор: oliakovale

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Автор ответа: dobra888

Ответ:

Пошаговое объяснение:

113 . а) А( 1,2 ) ; B(- 3 ) ; C( x₀ ) - центр симетрії точок А і В ;

х₀ = ( х₁ + х₂ )/2 = (- 3 + 1,2 )/2 = - 1,8/2 = - 0,9 ; отже , точка С(- 0,9 ) ;

б) А(- 17 ) ; B( 113 ) ;

х₀ = ( х₁ + х₂ )/2 = (- 17 + 113 )/2 = 96/2 = 48 ; отже , точка С( 48 ) .

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