nguyendinhbaotran102 nguyendinhbaotran102
  • 23-07-2021
  • Mathematics
contestada

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 basantakhadka9876
  • 23-07-2021

Answer:

Which language is this ?????

Answer Link

Otras preguntas

Which type of fault is shown in the illustration?thrustnormalreversestrike-slip
A stadium has 10,500 seats and 8 VIP boxes. The stadium is divided into 12 equal sections: 2 premium sections and 10 standard sections. A seat at the premium se
What area of the world saw the most fascist activity between the world wars? Asia Africa North America Europe
what is the value of ya cannot be determined b 120° c 60° d 66°​
I will brainless who can answer this all pleaseeeeej​
f(x)=5x-1; find f (-2), f (0), and f (x+1)
what are your thoughts on Moliere's tartuffe?
what is the longest an astronaut has stayed in space
How would a historian use this political map to study Roman civilization? to understand Roman forms of government to determine how the Roman Empire expanded ove
someone help me assap on a timesd tist will give 20 points