Предмет: Математика, автор: rizoiddinov

найдите сумму всех значений t при которых уравнение y²-2ty+t+2=0 имеет совпадающие корни​

Ответы

Автор ответа: sabirzelena
1

Ответ:

Пошаговое объяснение:

D=t²-(t+2)=0

t²-t-2=0

t₁₂=(1±√9)/2

t₁=2; t₂=-1

Сумма:

2-1=1.

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