Li Wen and Wang Qin agreed to do their homework at home together

Li Wen and Wang Qin agreed to do their homework at home together

To change the sentence to such a point! To change people are sick!
Who can prove that this sentence is wrong? It's incredible!
In this sentence, "my own home" is of course Li Wen's?

Zhang Ming and Li Wei agreed to do their homework at home

In addition to the fact that the meaning of "self" in the upstairs is not clear, there is another situation in which one's own home can also be understood as one's own home
Zhang Ming and Li Wei agreed to do their homework at home at XX time

It is known that in △ ABC, ∠ ACB = 90 ° AC = BC, the straight line Mn passes through point C, and ad ⊥ Mn is in D, be ⊥ Mn is in E

This is the proof: 1) the following: ① \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\- CD, de = ad-be

Factorization of 10x ^ 2Y ^ 2-xy-2

Multiplication by cross phase
10x^2y^2—xy—2
5xy 2
2xy -1
The result of cross multiplication and addition is that - 5xy + 4xy = - XY satisfies the intermediate term
therefore
10x^2y^2—xy—2
=(5xy+2)(2xy-1)
Factorization in Grade 8

The polar coordinate equation P = sin2 θ is transformed into a rectangular coordinate equation
RT
...

p^3=2sinθ*p*cosθ*p
(x^2+y^2)^(1.5)=2xy

As shown in the figure, in the triangle ABC, the angle ACB = 90 degrees, the angle a = 30 degrees, CD is perpendicular to AB, the perpendicular foot is the point D, BD = 1?

30 degrees is half of the hypotenuse,
∠A=30°,∠ACB=90°,∴∠B=60°
And ∵ CDB = 90 ° and ∵ DCB = 30 °
∴BC=2BD
∵∠A=30°,∠ACB=90°,∴AB=2BC
That is, ad = 3bd
Remember to evaluate in time, I hope our work can be recognized, which is also the driving force for us to move forward!

How many square meters is 1km

1km = 1000m (length) square of 1km = 1000000 square meters (area)

Given log3 (x-2y) + log3 (x + 2Y) = 1 + log3x + log3y, find the value of log2x-log2y

Log3 (x-2y) + log3 (x + 2Y) = 1 + log3x + log3y, find the value of log2x-log2y log3 (x-2y) (x + 2Y) = log3 (3) + log3x + log3ylog3x ^ 2-4y ^ 2 = log3 (3xy) x ^ 2-4y ^ 2 = 3xy (x-4y) (x + y) = 0x1 = 4Y x2 = - Y (pick up) log2x-log2y = log2 (x / y) = log2 (x / 4x) = 2

The perimeter of a square is ACM, what is the area
Algebraic representation

The side length of the square is:
a ÷ 4
= a / 4
The area of square type is as follows
（a / 4）²
= a ² / 16
Our team will answer for you

In RLC series sinusoidal steady-state circuit, if the total port voltage U = 50 ∠ 53.1 ° and the inductance voltage is 60V, what is the resistance voltage and the capacitance voltage

The current in series circuit is equal
At resonance, the impedance modes of the inductor and the capacitor are equal, and the phase difference between the inductor voltage and the capacitor voltage is 180 degrees
The voltages of the capacitor and the inductor cancel each other, and the voltage on the resistor is the port voltage