If the m-th power of a = 8 and the n-th power of a = half, what is the M-N power of a

If the m-th power of a = 8 and the n-th power of a = half, what is the M-N power of a

a^(m-n)=a^m/a^n=8/(1/2)=16

The third power of 2 (a-b) - the second power of 4 (B-A) = the second power of 2 (a-b) * (what)

2（a-b）?（b-a）?p>=2（a-b）?[-（a-b）]?p>=2（a-b）?（a-b）?p>=2（a-b）?゛-b-2)

2 (a-b) × [(B-A) 3] 3

Solution
2(a-b)[(b-a)³]³
=-The 9th power of 2 (B-A) (B-A)
=-The 10th power of 2 (B-A)

What is the common point between the cubic power * B of the algebraic formula 3a, the cubic power * C of the algebraic formula 3a and the cubic power * B of the algebraic formula a?
Write down.

It's all octanomial

52% 39 is equal to a few percent speed!

75%
39/52 = 0.75 =75%

Given a + B = 6, ab = 15, find the value of the square of a + the square of B. hint: by using the formula, (a + the square of B) = the square of a + the square of B + the square of B)

a+b=（a+b）-2ab=6-30=6

1 by 1 in 4 plus 4 by 1 in 7 plus 7 by 1 in 10 plus 2008 by 1 in 2011, etc

1 by 1 in 4 plus 4 by 1 in 7 plus 7 by 1 in 10 plus 2008 by 1 in 2011
=1 / 3 (1-1 / 4) + 1 / 3 (1 / 4-1 / 7) + 1 / 3 (1 / 2008-1 / 2011)
=1 / 3 (1-4 / 1 + 1 / 4-7 / 1 + 1 / 7 + 1 / 2008-2011)
=1 / 3 × (1 / 1-2011)
=1 / 3 × 2010 / 2011
=670 in 2011
Have a good time

Solve the equation {x-2y = 3 4x-y = 19

Equation 1 and equation 2 are indicated in the equations
Multiply the left and right sides of equation 1 by 4 to get the following equation:
4x-8y = 12 denotes equation 3
Then subtract the left and right sides of formula 3 from the left and right sides of formula 2
The results are as follows
7y=19-12
7y=7
y=1
Then y = 1 is introduced into Formula 1 or formula 2
We get x = 5

【1】 (7 / 9 + 5 / 6) divided by 1 / 18 [2] 1 / 5 * 4 divided by 2 / 5

【1】 (7 / 9 + 5 / 6) divided by 1 / 18
=7/9×18+5/6×18
=14+15
=29
【2】 1 / 5 * 4 divided by 2 / 5
=1/5×4×5/2
=2
That's all

In Δ ABC, can 2B = a + C be written as 2sinb = Sina + sinc

Yes
Using the sine theorem:
Let a / Sina = B / SINB = C / sinc = K,
Then 2B = a + C = = > 2sinb * k = Sina * k + sinc * k = = > 2sinb = Sina + sinc