Is life plural My English is not good, please help!

Is life plural My English is not good, please help!

lives
How to change the plural of the following nouns?
Chinese
Japanese
French
English
Amercian
Russia
koran
Australian
Indonesian
Canadian
German
Is there a regular pattern for such nouns to change from simple to complex? When to add s / es and when to change from singular to plural?
Chinese-Chinese
Japanese -Japanese
French -French
English- English
Amercian-Americans
Russian-Russians
Australian-Australians
Indonesian-Indonesians
Canadian -Canadians
"Chinese" has plural form. When it is used as "language", it is an uncountable noun
Koran the Koran
German
I don't think the above answer is right,
e. G. American plural Americans
Chinese
Japanese
French
English
The first four complex numbers are the original form, and the complex number remains unchanged
Chinese
Japanese
Frenches
English
Amercians
Russia
koran
Australian
Indonesian
Canadian
Germen
Chinese
Japanese
French
English
Amercian
Russia
koran
Australian
Indonesian
Canadian
German
Chinese
Japanese
French
English
Amercian
Russia
koran
Australian
Indonesian
Canadian
German
don't think the above answer is right,
e. G. American plural Americans
Chinese
Japanese
French
English
The first four complex numbers are the original form, and the complex number remains unchanged
When couple is interpreted as husband and wife, is the predicate singular or plural?
Couple: when used as a noun, it means "couple",
It means the singular, and the predicate verb should also use the singular
The synonym is mates, pair
example sentence:
1、They are a nice couple.
They are a perfect couple
2、The couple is going to Shanghai next week .
The couple are going to Shanghai next week
not always!!!
A couple with singular
Two couples in the plural
Use the plural.
Let f (x) defined on R satisfy f (x) times f (x + 2) = 13, if f (1) = 2, then the value of F (99) is
f(x)=13/f(x+2)
Using X + 2 to replace x
f(x+2)=13/f(x+4)
Substituting the above formula
f(x)=13/（13/f(x+4)）=f(x+4)
So the period of the original function is 4
f(99)=f(3)
From F (x) × f (x + 2) = 13
So f (1) × f (3) = 13
f(3)=13/2=f(99)
Plural or singular?
Do you have the plural or singular?
Can't you just add the singular?
The plural form of "fee + countable noun"
complex
no way
A fee / fee + plural form of countable nouns
A little / little + the singular form of uncountable nouns
If the function f (x) defined on R satisfies f (x + y) + 1 = f (x) + F (y), f (0.5) = 0 and x > 0.5, f (x)
Let x = y = 0.5, f (1) + 1 = f (0.5) + F (0.5) f (1) = - 1x = n, y = 1, then f (n + 1) + 1 = f (n) + F (1) f (n + 1) = f (n) - 2An the tolerance of arithmetic sequence is - 2 an = - 1 + (- 2) (n-1) = - 2n-32, x = y = 1 / 4f (0.5) + 1 = f (1 / 4) + F (1 / 4) f (1 / 4) = 0.5f (1 / 8) = 3 / 4f (1 / 2 ^ n) = 1 - (2
The difference between each and each of, especially the singular and plural predicate verbs
Each is not only an adjective, but also a pronoun and adverb. When it is used as an adjective, it is followed by a singular noun. When it is used as a pronoun, it can be directly used as the subject and the predicate is singular. When it is used as an adverb, it does not affect the form of the predicate. For example, each student has a book. = the students have a book each.each Of + plural noun or pronoun when each is a pronoun
Let the derivative of function f (x) be f '(x), and f' (x) > F (x), then when a > 0, the relationship between F (a) and e ^ AF (0) is
The meaning of e ^ AF (0) is not clear. Suppose e ^ A * f (0) instead of e ^ (a * f (0))
∫e^x*f'(a-x)*dx=-∫e^x*d(f(a-x))=-e^x*f(a-x)+∫f(a-x)*d(e^x)
=-e^x*f(a-x)+∫f(a-x)*e^x*dx,
∫e^x*f'(a-x)*dx-∫f(a-x)*e^x*dx=-e^x*f(a-x),
∫e^x*[f'(a-x)-f(a-x)]*dx=-e^x*f(a-x),
Because f '(x) > F (x), the integrand on the left side of the above formula is always positive,
Let the integral interval be [0, a], then left > 0, right = f (a) - e ^ A * f (0),
So f (a) - e ^ A * f (0) > 0, f (a) > e ^ A * f (0)
When does the predicate use the singular and when does the predicate use the plural
When each is singular before the subject, for example: each student has a book.each of the students has a book.
When each comes after the subject and the subject is plural, use the plural, for example: they each have books
For the differentiable function f (x) on R, if (x-1) f ′ (x) > 0, then the relation between F (0) + F (2) and 2F (1) is______ .
∫ (x-1) f ′ (x) > 0, when x > 1, f ′ (x) > 0, then the function monotonically increases, when x < 1, f ′ (x) < 0, then the function monotonically decreases, ∫ f (2) > F (1), f (0) > F (1), ∫ f (0) + F (2) > 2F (1)