nguyendinhbaotran102 nguyendinhbaotran102

23-07-2021
Mathematics

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chứng minh mệnh đề sau bằng phương pháp phản chứng:
" Nếu phương trình bậc hai ax2+bx+c=0 vô nghiệm thì a và c cùng dấu"

Respuesta :

basantakhadka9876 basantakhadka9876

23-07-2021

Answer:

Which language is this ?????

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