log5·log5(3)·log5(1/3) log3(5)·log5(3)·log5(1/3) log3(2)·log5(3)·log8(5) sorry

log5·log5(3)·log5(1/3) log3(5)·log5(3)·log5(1/3) log3(2)·log5(3)·log8(5) sorry

Original formula = (LG2 / Lg3) · (Lg3 / lg5) · (lg5 / LG8)
=(lg2/lg3)·(lg3/lg5)·(lg5/3lg2)
Approximate points
=1/3

Given log 535 = m, log7 1.4 =?

m=lg35/lg7=(lg5+lg7)/lg7
lg5+lg7=mlg7
lg5=(m-1)lg7
Original formula = lg1.4/lg7
=(lg7-lg5)/lg7
=[lg7-(m-1)lg7]/lg7
=2-m

As shown in the figure, a right triangle paper, after cutting the right angle, get a quadrilateral, then ∠ 1 + 2=______ Degree

As shown in the figure, according to the meaning of the title, it can be seen that ∠ 5 = 90 °, ∠ 3 + ∠ 4 = 90 ° and ∠ 1 + ∠ 2 = 180 ° + 180 ° - (∠ 3 + ∠ 4) = 360 ° - 90 ° = 270 °

Write antonyms, fill in proper adjectives and explain the meaning of words
Antonym: strong doubt warm dim active ease wither hidden
Near synonym: Forgiveness exposes consternation sarcasm pleads slack exhaustion pride
Fill in the appropriate adjectives: () flowers () sounds () tastes
() feeling () picture () future
Explain the meaning of words
Incisively and vividly
There are too many examples
Excellent workmanship

Incisive: incisive: permeate the appearance of water, metaphor heartily, soundly; incisive: to the extreme
Incisively and vividly: describe the full and detailed expression of the article and speech, or to the extreme. Sometimes it also refers to the full and full expression of the point of view
Numerous: Win: exhausted; pieces: pieces. Can not be listed one by one. Describe a large number
Ingenious craftsmanship: ingenious man-made is superior to nature. It is described as extremely ingenious

In the triangle ABC, if LGA - LGC = LG sin, B = - LG radical 2, and B is an acute angle, it is to judge the shape of the triangle!
I don't know how to think
There's a place I don't understand
-How is LG radical 2 equal to LG (1 / radical 2)?
It's stuck right here

LG sin B = - LG radical 2 = LG (1 / radical 2), that is sin B = 1 / radical 2, and because B is an acute angle, B = 45 °
LGA - LGC = LG (A / C) = LG (1 / radical 2), so a / C = 1 / radical 2, let a = k, then C = k * radical 2. According to cosine theorem, CoSb = (a square + C square - b square) / 2Ac, B = k = a
So the triangle is isosceles right triangle

Give me an example of each tense
It's interesting,

I love you. I love you. I love you. I am looking for your love. I have loved you since I met you

A.51 b.52 c.54 d.55

d
3 3=2²－1
11 11=3²＋2
13 13=4²－3
29 29=5²＋4
31 31=6²－5
You can see that the general formula is an = (n + 1) &# 178; + (- 1) n power × n
So the next number is A6 = 55
So choose D

A complex number problem in Senior Two
Let there be a complex Z satisfying the following conditions: (1) the point of complex Z in the complex plane is in the second quadrant, (2) the conjugate complex of z.z = 2iz = 8 + AI (a belongs to R), try to find the value range of A

Let z = a + bi, the conjugate complex number of Z = a-bi a-bi = 2I (a + bi) = 8 + AI a-bi = - 2b + 2ai = 8 + AI a = - 2b = 8 - B = 2A = a

The difference between definition and concept in Physics
If title, it is definition and concept in physics book say is a

The concepts and definitions in physics are the same as the usual ones
Concept refers to people's understanding of things themselves. I literally mean people's thinking about things themselves
For example, the definition of acceleration is how much the speed increases per second, and the unit is meters per second. This is an artificial definition, and it can also be defined as centimeters per second. For another example, we define "meter". 1 meter is defined as that long, which can be defined as a little longer or a little shorter, We divide the time of a day into 24 parts averagely, and each part is one hour. This is the definition of hour. At the beginning, the day can be divided into 10 parts or 20 parts, so the defined hours are a little more than the present hours. These are all rules that we think. The definition is that for the convenience of calculation, people can see the day and night, and it will definitely define a day and night as a day, We don't define a day as a day
The definition formula of acceleration is a = V / s, because acceleration is literally the degree of increase of velocity,
The other formula a = f / M is not the definition formula, it is about the speed change of the object when the force acts on the object

In English, a singular or a plural followed by is or are
For example, I and cats (AM / is / are) together
all living things are made up of 1 or many (cell/cells)

I and cats are together all living things are made up of 1 or many cells