Xiao Ming is having a meal. Xiao Gang came to see him

Xiao Ming is having a meal. Xiao Gang came to see him

"Xiao Ming is eating. Xiao Gang has come to see him."

I hit Xiao Ming, but Xiao Gang hit him. Is this a sick sentence? Who does "he" refer to?

There is no language sickness. He refers to Xiao Ming

What are the types of dislocation subtraction?

Finding the general term: an equal ratio sequence multiplied by an equal difference sequence can be subtracted by dislocation
Recursion is usually used to multiply, accumulate and so on
There are also reverse order addition, the derivation of arithmetic sequence and the method used at that time
The most basic is formula method, and the most universal is conjecture proof

Solution of equation 2x + 3 (39-x) = 96

2x+3(39-x)=96
2x+117-3x=96
3x-2x=117-96
x=21

What does Deng Jiaxian's text say about Deng Jiaxian? How does it express his thoughts and feelings?

Part 1: recalling the modern history of nearly one hundred years, it is pointed out that Deng Jiaxian is a scientist who has made great contributions to the national rejuvenation (Introduction). Part 2: introducing Deng Jiaxian's life. Part 3: comparing with Oppenheimer's description, it shows Deng Jiaxian's lofty spiritual quality. Part 4: China's atomic bomb was made by the Chinese themselves, and the author is proud of the Chinese people

What is the 2x-2 power of x = 3

2x-2 power of x = 3
2x-2 power of x-3 = 0
(x-3)(x+1)=0
x1=3 x2=-1
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1 / X-1 = 2 / X solution equation

1 / (x-1) = 2 / X both sides multiply by X (x-1) to get: x = 2x-2 shift term: x = 2

What is the circumference formula and volume formula of a cone

Generally, the circumference of a cone is not calculated
Cylinder volume = bottom area × height v = sh
(the approximate cuboid is laid flat to get: volume of cylinder = half of side area × radius v = ch △ 2 × r = 2 π R △ 2 × r = π R × R)
Volume of cone = bottom area × height △ 3 V = sh △ 3 or 1 / 3SH

It is known that cos (a + Wu / 6) = 5 / 13 and 0

cosa=cos[(a+π/6)-π/6]
And because, 0

Solve the equation 2X-4 = 34, 2x of 3 = 7 of 12

2x-4=34
2x=34+4
2x=38
x=38/2
x=19
2X of 3 = 7 of 12
x=7/12×3/2
x=7/8
X = 7 / 8