Calculation: 1 / 2 + √ 3 + √ 27-6 √ 1 / 3

Calculation: 1 / 2 + √ 3 + √ 27-6 √ 1 / 3

Original formula = 1 / 3 + √ 3 + 3 √ 3-2 √ 3
=1/3+2√3
If you have any new questions, please don't send them in the form of follow-up questions, send them to me for help or send them to the question link address,

If the visual picture of a plane quadrilateral is a square with side length a, the area of the original plane quadrilateral is equal to___ ．

According to the rule of oblique dichotomy in drawing the visual graph of plane graph, the relationship between the area s of a plane graph and the area s' of its visual graph is s' = 24s. The area of the visual graph in this question is A2, so the area of the original plane quadrilateral is equal to a224 = 22a2

How to translate the word "prominence" into English?

highlight;
underscore;
pinpoint;

Given that point C is a point on line AB, m and N are the midpoint of AC and BC respectively, ab = 6cm, find the length of Mn

Upstairs is the solution
am+mc+cn+nb=6
am=mc
cn=nb
Then 2 (MC + CN) = 6
mc+cn=3
mn=mc+cn=3

English conjunctions make sentences!
had lot a of fun We on holiday our

We had a lot of fun on our holiday
In fact, it's the same as Chinese, abbreviation, catch out "who", "what". Other "where", "how" and so on, are all supplements
To find out the noun, the title is "fun"
We had fun
The rest of a lot of; on our holiday is a supplement
A lot of means "a lot of". It is used to describe "fun"
On our holiday is a phrase for time
We had a lot of fun on our holiday
"We had a lot of fun during the holiday."

The sum of the numerator and denominator of a fraction is 67. If the denominator is added with 13, the fraction can be reduced to a quarter. What is the fraction?
Write a brief thought process

Let this number be x (67-x), the denominator plus 13, X (67-x + 13) = 1 / 4, and solve the equation x = 16, so this number is 16 / 51

What about the determiners that modify countable and uncountable nouns

Many is uncountable
Many countable
A lot of essays

Let a and B satisfy a, B = 0, | a | = 1, | B | = 2, then | 2a-b|=

|2a-b|^2
=4a^2-4ab+b^2
=4+4
=8
|2a-b|=2√2

Fill in the blanks with proper words and pay attention to the collocation of phrases
1.You also got 140!My grade is _______ same _______ ________ .
2.He looks ________ his health and often_______ sports.He ______ always _______ good health.
3._______ the moment he has too _______ work.

1.the as me
2.in take is in
3.At much

It is known that in the triangle ABC, Mn is parallel, BC, DN is parallel, cm

∵ Mn parallel BC
The triangle amn is similar to the triangle ABC
∵ DN parallel MC
The triangle adn is similar to the triangle AMC
∴ AM/AB=AN/AC
AD/AM=AN/AC
Two simultaneous equations AM / AB = ad / am, so am square = AB * ad