It is known that ABC is trilateral of △ ABC, and the equation B (X & # 178; - 1) - 2x + C (X & # 178; + 1) = 0 has two equal real roots

It is known that ABC is trilateral of △ ABC, and the equation B (X & # 178; - 1) - 2x + C (X & # 178; + 1) = 0 has two equal real roots


It is known that ABC is trilateral of △ ABC, and the equation B (X & # 178; - 1) - 2x + C (X & # 178; + 1) = 0 has two equal real roots
b(x²-1)-2x+c(x²+1)=0
That is x ^ 2 (B + C) - 2x + C-B = 0
Because B and C are the sides of the triangle
Then B + C ≠ 0
According to the meaning of the title:
Discriminant = 4-4 (B + C) (C-B) = 0
Then C ^ 2 = B ^ 2 + 1
If a = 1
Then the triangle is a right triangle
If a = 1, B = 1, then the triangle is isosceles right triangle
……
It seems that you are not qualified for this question. Is it a = less? It's hard to get an answer



If the equation 2x (kx-4) - X & # 178; + 6 = 0 has no real root, then the minimum integer value of K


The original equation is
(2k-1)x^2-8x+6=0
b^2-4ac=64-24(2k-1)11/6
So the minimum value of K is 2



On the equation (1-2k) x & # 178; - 2 (K + 1) x - (1 / 2) k = 0 of X, there is a real root (1). If the equation has only one real root, find the following
(2) If the equation has two unequal real roots X &; X &;, and (1 / X &;) + (1 / X &;) = - 6, find the value of K


1. △ = 4 (K + 1) ^ 2 + 4 (1-2k) * 1 / 2K = 10K + 4 = 0k = - 2 / 5 the equation is: 9x & # 178 / / 5-6x / 5 + 1 / 5 = 0 (3x-1) ^ 2 / 5 = 0x = 1 / 32) X1 + x2 = 2 (K + 1) / (1-2k) x1x2 = - K / 2 (1-2k) 1 / X1 + 1 / x2 = (x1 + x2) / x1x2 = 2 (K + 1) / (- K / 2) = - 4 (K + 1) / k = - 66K = 4K + 4K = 2



Have you ever been to America


Have you ever been America?



English translation
From the chart, we can see that fish, shrimp and birds want to pull the cart full of grain, but they can't pull the cart because of the different directions of their forces. From the above, we can know the importance of team spirit. In the face of such problems, a good team must have a common goal if it wants to do something. Fish, shrimp and birds must choose the same direction if they want to pull the cart, Secondly, under the guidance of the common goal, we should manage the team and cultivate the team consciousness and team spirit of each member. Under the common goal, fish, shrimp and birds should learn to establish their own team spirit to fully realize the team spirit, Fish, shrimp and birds will inevitably be exhausted when they pull the cart. At this time, they need to be motivated to work harder


May know from the graph, the fish, the shrimp, bird wish drawing packs the grain the cart, but because their action's direction is different, causes them not to be able to draw the car. Knew from, tea...



English translation
Dear Nepal International Volunteer Association, due to the air ticket, I will go to Nepal three days in advance, that is, I will arrive in Kathmandu on January 7 and arrive in Kathmandu on January 4. I am eager to serve the children in Nepal. Please forgive me for the inconvenience


Dear Nepal International Volunteers Association,
Dear Nepal International Volunteer Association,
because tickets reason,
Because of the air ticket,
I will three days in advance to Nepal,
I will go to Nepal three days in advance,
which is originally scheduled to arrive in Kathmandu on January 7, arrived
It was originally scheduled to arrive in Kathmandu on January 7,
Jan. 4 in advance,
Arrive early on January 4th,
and look forward to serving children in Nepal,
Eager to serve the children of Nepal,
sorry for any inconvenience this caused.
Please understand the inconvenience caused
Thank you
thank you.



English translation
only write down the letter before the words on your answer sheet
Just write down the numbers in front of the answers on the answer sheet. The numbers in front of the answers are a to J


Letter means letter
Just write down the letters in front of the words on your answer sheet
It should be your understanding, that is to write a to J



English translation
My master’s degree and overseas experience bolster my qualification.I am recognized for my energy,agility,and quick thinking/action,as well as for focusing on maintaining an outstanding team emphasizing customer service.


I have the qualifications of master's degree and overseas working experience. My ability in work, agile and flexible thinking (action) have been recognized, and I focus on maintaining an excellent team to provide high-quality customer service
My master's degree and overseas experience have strengthened my qualifications. I am also recognized as energetic, quick thinking and flexible. At the same time, I focus on maintaining the excellence of my team and emphasizing high-quality customer service



We are a promising generation
We are a hopeful generation.
We are the generation of hope.
I feel that this sentence is very bad. We are plural, and then it becomes a. the second sentence is also strange


We are a promising generation.
We can use a because we are a whole



I don't know what happiness is without you
Happy without you I do not know what is
without you i do not know happy
without you i do not know happy what is
what is happy without you i don`t know
That is the correct translation. Why do sentences made up of the same words have different meanings? How do you think about it, what is used in the front and what is used in the back


Without you,I do not know what happiness is.
I do not know should be followed by an object clause, which is in declarative order, so what happiness is; happy is a noun, so happiness; and without you can be put after