[(35/6-49/12+63/20-77/30+91/42-105/56)-11/8]/1/2

[(35/6-49/12+63/20-77/30+91/42-105/56)-11/8]/1/2

five million five hundred and sixty-eight thousand nine hundred and forty-two

4 times 9.9 plus 0.04

0.4×9.9+0.04
=0.04×99+0.04
=0.04×（99+1）
=0.04×100
=4

What is the square of 3.14 times 1.5?

7.065

If the function y = |log2|x-1|k has four zeros, then the sum of the four zeros is
If the function y = |log2|x-1| + K has four zeros, then the sum of the four zeros is

y=|log2|x-1||+k=0
|log2|x-1||=-k
Log2|x-1| = k or - K
|X-1 | = 2 ^ k or 2 ^ (- K) = (1 / 2) ^ k
That is, x = 1 + 2 ^ k or 1-2 ^ K
Or 1 + (1 / 2) ^ k or 1 - (1 / 2) ^ K
Thus, the sum of the four zeros is: 1 + 1 + 1 + 1 = 4

Divide 126 into the sum of two prime numbers, so that the difference between the two prime numbers is the largest. What are the two prime numbers?

13 and 113
Sorry, ha ha

(the quadratic power of a × B + the quadratic power of AB) △ 2Ab=

a²-b²
=(a+b)(a-b)
a²+2ab=a(a+2b)
a²-2ab=a(a-2b)
b²-2ab=b(b-2a)
b²+2ab=b(b+2a)
If A-1 = 3
Then a = 4
At this point, L1 is perpendicular to the X axis
And D is (- 2,6), L2 is not perpendicular to y axis
Not to the point
So a ≠ 4
Then L1 slope = (A-2) / (3-A + 1) = (A-2) / (4-A)
L2 slope = (a + 2-2) / (- 2-1) = - A / 3
For vertical, then (A-2) / (4-A) * (- A / 3) = - 1
a²-2a=12-3a
a²+a-12=0
a=-4,a=3

Let f (x) = (x-a) / (x-1), M = {x, f (x) less than 0}, P = {x, f (x) derivative is greater than 0}, if M is contained in P, then
The answer is [1, positive infinity]

If f (x) is derived, f (x) ′ = (A-1) / (x-1) 2 (x ≠ 1)
So m = {x, (x-a) / (x-1) < 0}, n = {x, (A-1) / (x-1) 2}. Now we discuss the classification of parameter a
① When a ＞ 1, M = {x, 1 ＜ x ＜ a}, n = {x, X ≠ 1}, obviously, M is included in P
② When a = 1, M = {x, empty set}, n = {x, x = R}, obviously, M is included in P
③ When a ＜ 1, M = {x, a ＜ x ＜ 1}, n = {x, empty set}. Obviously, n is included in M, which does not conform to the meaning of the title
In conclusion, M is included in P only when a ≥ 1

(14 18 25) 06 08 13 15 16 17 19 20 23 24 26 28 30 33:07 14 Dan Tuo 728 injection
What does (14 18 25) mean

14 18 25 is courage, that is to say, each group of numbers must have these three numbers
06 08 13 15 16 19 20 23 24 26 28 30 33 is tow, that is to say, any three numbers in the three Dan Jia tow constitute a group of numbers
07 14 basketball, that is to say, any three numbers in the three Dan Jia Tuo constitute a group of numbers, plus basketball 7 or 14 as a group of numbers

If the difference between 8 / 5 minus the reciprocal of a number is 5 / 8, then the number is ()

8/5-5/8=39/40
This number is 39 / 40 and the reciprocal is 40 / 39
If the difference between 8 / 5 minus the reciprocal of a number is 5 / 8, then the number is (40 / 39)

3x-102 + X + 2x + 18 = 816

3x-102+x+2x+18=816
6x=816+102-18
x=150