How to find the least coefficient in binomial We haven't learned the one based on derivative extremum This chapter is about the properties of Yang Hui's triangle and binomial coefficient Question: in the binomial expansion of (a-b) to the 10th power, what is the smallest coefficient In addition, we need to ask what is the minimum term of coefficient, which term or the coefficient of which term

How to find the least coefficient in binomial We haven't learned the one based on derivative extremum This chapter is about the properties of Yang Hui's triangle and binomial coefficient Question: in the binomial expansion of (a-b) to the 10th power, what is the smallest coefficient In addition, we need to ask what is the minimum term of coefficient, which term or the coefficient of which term

The coefficient with the largest absolute value is C10 (5), which is the sixth term
Obviously he's negative
So the coefficient is the smallest
So it's - C10 (5) a ^ 5B ^ 5
Coefficient minimum term
The ball is an item, so fill in the whole item

The sum of the first n terms of binomial coefficients
Does the sum of the first n terms of binomial coefficients include constant terms? Is it OK to find the sum of the first n terms of binomial coefficients by substituting x into 1? For example, is the sum of the first n terms of (1-radical x) ^ 8 0?

What you said here is a little vague. I'll explain it to you like this. For example, the binomial (2x + 3 / x) ^ n has two kinds of coefficients. One is the binomial coefficient, and the other is the coefficient. For the former, for the binomial with the power of N, the sum of its binomial coefficients must be 2 ^ n, for the first n (n)

All the following English and Chinese pronunciation is urgent
C & A is a century old shop belonging to the brenninkmeijer family in the Netherlands
Clockhouse
Yessica
Angelo
Litrico Palomin
BabyClub

I am very careful to write, oh, pronunciation is very accurate
Clock house
Cloaker died
Yessica
Yasuction card
Angelo
Angie
Litrico Palomin
Ritchie. The pooches
Baby club
Mean kraber

There are two identical cylinders, which can be assembled into a cylinder 12 cm high, and the surface area is reduced by 25.12 square centimeters

25.12 △ 2 = 12.56 (square centimeter), 12.56 △ 3.14 = 4, and because 22 = 4, the bottom radius of this cylinder is 2 cm, then the surface area is: 3.14 × 2 × 2 × (12 △ 2) + 12.56 × 2, = 75.36 + 25.12, = 100.48 (square centimeter). A: the original surface area of a cylinder is 100.48 square centimeter

Prime number, composite number and factorial prime factor
1. There are two numbers, one of which is five times the other. The product of the two numbers is 3920. What are the two numbers?
2. There are three natural numbers a, B and C. the largest one is 6 times larger than the smallest one. The other is their average, and the product of the three numbers is 15400. Try to find three natural numbers
3. Divide 26, 33, 34, 35, 63, 85, 91 and 143 into several groups. It is required that the greatest common divisor of any two numbers in each group is 1. How many groups should they be divided at least?
975 × 935 × 972 × (), to make the last five digits of the product zero, what number should be filled in the brackets?

1. Let these two numbers be x and Y respectively, then
x/y=5
xy=3920
The solution is as follows
X = 140, y = 28, or x = - 140, y = - 28
2. Let a, B and C be x, y and Z respectively
x-z=6
y=（x+z）/2
xyz=15400
Let X and Z be represented by y
Y (Y-3) (y + 3) is 15400
x=28,y=25,z=22
3. Group 8 numbers with common divisor (26,34), (33,63), (35,85), (26,91143), there are 4 groups, and there are only 3 numbers in these 4 groups, all of them should be divided into 3 groups at least, namely 26,33,35 and 34,63,85,91, and 143
4. First of all, 975 × 935 × 972 = 886099500. It is not difficult to see that if the last five digits are all zero, just multiply by 1000 or 200

It is known that in △ ABC, ab = AC, BD is the middle line. BD divides the perimeter of △ ABC into two parts, 18cm and 21cm, and calculates the three sides

Let AB = AC = xcm, BC = YCM, according to the meaning of the question, we get x + 12x = 18y + 12x = 21 or x + 12x = 21y + 12x = 18, and the solution is x = 12Y = 15 or x = 14y = 11, so the three sides of the triangle are 12, 12, 15 or 14, 14, 11

The sum of two continuous natural numbers is 21, and the greatest common divisor of the two numbers is______ The least common multiple is______ ．

Because 10 and 11 are coprime, their greatest common divisor is 1 and their least common multiple is 10 × 21 = 210

Given that the oblique equation of a straight line is: Y-2 = X-1, what is the slope of the straight line? What is the inclination angle?

If you change Y-2 = X-1 to y = x + 1, you can see that the coefficient before x is 1, so the slope is 1 and the tilt angle is 45 degrees

He likes to eat apples and bananas?
There are four spaces in total

He likes eating apples and bananas

Given that the square of the parabola y = ax passes through point a (2,1), and point B and point a are symmetric about the y-axis, Q: is there a point C on the parabola,
Make the area of △ ABC half of △ OAB. Exist, request the coordinate of point C: not exist, please explain the reason

The parabola y = ax & # 178 passes through point a (2,1),
∴a×2²=1 ∴a=1/4
The parabola is y = 1 / 4 * X & # 178;
B and point a are symmetric about the Y axis
∴B(-2,1)
AB = 2 - (- 2) = 4, AB / / X axis
High H 1 = 1 on △ OAB edge ab
Let C (m, n) (n ≥ 0)
On the high H = | N-1 of ab|
If the area of △ ABC is half of △ OAB
Then H = 1 / 2 * H1
∴|n-1|=1/2
Ψ n-1 = 1 / 2 or n-1 = - 1 / 2
N = 3 / 2 or n = 1 / 2
When n = 3 / 2, M & # / 4 = 3 / 2, M = ± √ 6
When n = 1 / 2, M & # / 4 = 1 / 2, M = ± √ 2
There are four points c that meet the conditions
C(±√6,3/2),C(±√2,1/2)