2 (X & # 179;) & # 178; · X & # 179; - (4x & # 179;) & # 179; + (- 3x) & # 8308; · x M power of (X & # 179;) / N + 2 power of X · n-2 power of X The sixth power of (-) (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-); （-ab）⁴÷﹙-ab）² （-3a²﹚²

2 (X & # 179;) & # 178; · X & # 179; - (4x & # 179;) & # 179; + (- 3x) & # 8308; · x M power of (X & # 179;) / N + 2 power of X · n-2 power of X The sixth power of (-) (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-) / (-); （-ab）⁴÷﹙-ab）² （-3a²﹚²

79(x^9)
x^(3m/2n)
8/27
(ab)²
9a^4

Give people roses, hand fragrance,

1. There is only one straight line passing through two points. 2. The shortest line segment between two points. 3. The complementary angles of the same angle or equal angle are equal. 4. The complementary angles of the same angle or equal angle are equal. 5. There is only one straight line passing through one point and the known straight line is vertical. 6. Among all the line segments connected by a point outside the straight line and each point on the line, the shortest vertical line segment is 7. The axiom of parallel passing through the straight line

Given that the image of a linear function y = KX + B passes through point a (2,0), intersects with y axis at point B, and s △ AOB = 4 (o is the origin), the functional relation of this line is obtained

∵ the image of the first-order function y = KX + B passes through the point a (2,0), intersects with the y-axis at the point B, and s △ AOB = 4 (o is the origin), ∵ B (0,4) or B (0, - 4), substituting B (0,4) and a (2,0) into y = KX + B to get: B = 42K + B = 0, the solution is: k = - 2, B = 4, at this time, the analytic expression of the first-order function is y = - 2x + 4; substituting B (0, - 4) and a (2,0) into y = KX + B to get: B = - 42K + B = 0, the solution is: K =2, B = - 4, and the analytic formula of the first-order function is y = 2X-4

A natural number, the sum of digits in 3-ary is 2007, and the minimum sum of digits in 9-ary is 2007______ The biggest is______ ．

From the above analysis, it can be seen that the minimum sum of digits in the 9-ary system is 2007 and the maximum is 2007 × 3 = 6021. So the answer is: 20076021

Suppose the random variable x n (1,1), y = X-1, then the probability density of Y FY (y)=

Y = X-1 obeys the standard normal distribution, and the probability density is φ (y)

How to calculate the definite integral of sin (x) / X in MATLAB

>> syms x
>> R=int(sin(x)/x,x,a,b)
%Sin (x) / X is an integral expression
%X is the integral of X
%A is the lower limit
%B is the upper limit
%Infinite use of inf

24:1,3,4,6 with multiplication, addition, division, subtraction and parentheses

24 answers to 1,3,4,6:
1:6 ÷ (1 - 3 ÷ 4) =24
2:6 ÷ (1 - (3 ÷ 4))=24

The area of a parallelogram is 18 square centimeters. Please draw the largest triangle in the picture. The area is______ Square centimeter

As shown in the figure: 18 △ 2 = 9 (square centimeter) a: the area of this triangle is 9 square centimeter. So the answer is: 9

How to use the collocation method to transform the general form of quadratic function into the vertex form. There is no need for formula, the important thing is the principle of solving the problem
For example, the formula y = - 2x & sup2; + 8x - 6 is used to form the vertex form

The coefficient of quadratic term should be 1
So we need to put forward - 2
y=-2（x²-4x+3）
Then the constant term is the square of half the coefficient of the first term
The square of half of four is four
So y = - 2 (X & sup2; - 4x + 4-4 + 3)
y=-2（x²—4x+4-1）
Y = - 2 (X-2) & sup2; + 2 this is the vertex form

If the square of X - 25 = 0, then the value of X is zero

5 and (- 5), that is + - 5, children should not always take your father's computer to do homework