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

23-07-2021

Answer:

Which language is this ?????

Answer Link

Otras preguntas

yo running out of points but...

Which of the following characteristics cannot be influenced by the environment? A. Chance of having diabetes B. Metabolism C. Natural eye color D. Height

Question 16 (Mandatory) (1 point) If a governor is impeached and convicted, he or she a) must reimburse the state for the cost of the trial in the Senate. Ob) c

1. A small-scale businessman deposits money at the beginning of each year into his savings account, depending on the level of the business’ returns. He deposits

In classical conditioning, the ________ is an unlearned reaction to a given stimulus. For example, if you have an allergy to pollen and sneeze, sneezing is an u

The National Liberation Front was a. None of these answers is correct. b. also known in the United States as the Viet Cong. c. created by Ngo Dinh Diem. d. both

If F(x) =5x/3 +5+5, which of the following is the inverse of F(x)?O A. F'(x) = 5(x+5)3O B. F'(x) = 3(x+5)5C. F1(x) = 5(x-5)O D. F'(x) = 3(-5)

In most linear programming problems, there are two stages: 1. to interpret the information given as a series of simultaneous inequalities and display them graph

Realism ? Representation of virtue Post- Impressionism ? Opposition to the violence of war Neoclassicism 1? Depiction of gritty street life Romanticism 2 Focus

which sentence is most clearly discussing the implict meaning of a text? a. the parrot represents the poets madness. b. "the steel-raining storm" is a metaphore