On the exercises of a dream of Red Mansions 1. In a dream of Red Mansions, the person who "hears his voice first" refers to (), who is good at political tactics, such as poisoning (), power (), forcing death (), and destroying (), and finally comes to the tragic end of "scheming too cleverly and mistaking Qing Qing's life" 2. The three rebellious characters in a dream of Red Mansions are (), (), () 3. More than once, an ordinary and hard-working peasant woman appeared in the Grand View Garden. The one who was often teased by everyone was () Please write down five of the twelve beauties in Jinling

1. In a dream of Red Mansions, Wang Xifeng is the one who "hears his voice first when he doesn't see him". Wang Xifeng is the one who is good at political tricks, such as poison setting (Acacia Bureau), power playing (Tiechuang Temple), forcing death (you Erjie), destroying (Jia Baoyu and Lin Daiyu's) marriage, and finally comes to the tragic end of "the organ is too clever to miss Qing Qing's life"
2. The rebellious characters in a dream of Red Mansions are Lin Daiyu, Jia Baoyu and Jia Tanchun
3. More than once, an ordinary and hard-working peasant woman appeared in the Grand View Garden. She was often teased by everyone
Please write down five of the twelve beauties in Jinling
Lin Daiyu
Xue Baochai
Wang Xifeng
Shi Xiangyun
Qin Keqing
Qiao Jie
Miaoyu
Cherish spring
Li Wan
Jia Yuanchun
Jia Yingchun
Jia Tanchun

Exercises of a dream of Red Mansions
Who are the participants? What are their nicknames? Who is the president? Where is the location? What is the chant? Whose poem ranks first?

It is known that real numbers a, B and C form an arithmetic sequence, and the projection of point P (- 1,0) on the straight line ax + by + C = 0 is Q, then the trajectory equation of Q is Q______ ．

∵ a, B, C form the arithmetic sequence ∵ a-2b + C = 0, that is, the projection of the straight line ax + by + C = 0 across the fixed point m (1, - 2) ∵ P (- 1,0) on the straight line L: ax + by + C = 0 is Q ≁ PQ ⊥ straight line L, so PQM forms a right triangle, and the trajectory of Q is a circle with the diameter of PM. So the answer is x2 + (y + 1) 2 = 2

Xiaolin's living room is going to be paved with floor tiles. If you use 16 square decimeters of square tiles, you need to use 175. If the side length is 5 decimeters of square tiles,
How many pieces do you need? Proportional solution

Let's use x blocks
5*5x=175x16
25x=2800
x=112

Calculation with Kirchhoff theorem
Seek I1, I2, I3, UFA, ufb, UAD, UCD, ude

Kirchhoff's current law is used at node a
（1）
The left closed circuit uses Kirchhoff's law of voltage (clockwise direction)
The closed circuit on the right uses Kirchhoff's law of voltage (counterclockwise direction)
Substitute resistance value:
If two voltage sources are known, the unknowns of three currents can be obtained from (1) (2) (3), and then the voltage drop on each resistor can be obtained

Inverse functions of y = SiNx, X ∈ [- 3 / 2 π, - π]

Note that y = arcsinx is the inverse function of y = SiNx, X ∈ [- π / 2, π / 2]
For this problem, y = SiNx = - sin (x + π), y ∈ [0,1]
That is - y = sin (x + π), x + π ∈ [- π / 2,0]
Thus: x + π = arcsin (- y) = - arcsin y,
The inverse function is y = - arcsinx - π, X ∈ [0,1]

How many square centimeters is the surface area of a large cube made of 64 cubes whose edges are 1cm long

Small cube volume = 1 × 1 × 1 = 1 cubic centimeter
Large cube volume = 1 × 64 = 64 cubic centimeter
Because cube volume = edge length × edge length × edge length
So the edge length of the cube is 4 cm
Surface area = 4 × 4 × 6 = 96 square centimeter

Answers to the summer homework of mathematics in Volume 2 of grade 6

Be conscious~
study hard

What is x = T ^ 3 + T-1 y = 3-2t ^ 2 dy / dx|t-1

dy/dx|t=1=(dy/dt)/(dx/dt)|t=1=(3t^2+1)/-4t|t=1=-1

How much is the circumference of a rectangle when two squares with sides of 2 cm are put together into a rectangle?

The length of the rectangle is 2 * 2 = 4cm and the width is 2cm
Perimeter = (4 + 2) * 2 = 12cm

Exercises of a dream of Red Mansions Who are the participants? What are their nicknames? Who is the president? Where is the location? What is the chant? Whose poem ranks first?