It was windy all night yesterday evening Who can help me modify the sentence? Thank you! Topic: it was windy all night yesterday evening Thank you for your reply!

It was windy all night yesterday evening Who can help me modify the sentence? Thank you! Topic: it was windy all night yesterday evening Thank you for your reply!

It was windy all night last night
It was windy all night yesterday
Evening and night conflict

Given the function FX = ln (1 + x) / x, the monotonicity of FX on (0, + ∞) is determined
It is [ln (1 + x)] / X

f(x)=ln[(1+x)/x]=ln(1+1/x)（x>0),
f'(x)=[x/(1+x)](-1/x^2)
=-1/[x(x+1)]

How to judge the existence of function limit

There's no criterion. You can find its limit. If it's infinite, it doesn't exist. No matter how complex it is, we should use some methods to simplify it and find the limit

If a and B are NxN matrices and can be diagonalized by P, ab = Ba is proved
such as
A=PDP^-1 B=PSP^-1
It is proved that ab = ba

Because D and s are diagonal matrices, DS = SD
Thus, ab = PDP ^ - 1psp ^ - 1 = pdsp ^ - 1 = PSDP ^ - 1 = PS ^ - 1pdp ^ - 1 = ba

Don't have any. Plural or singular?
For example: Although Xi'an doesn't have any______ (beach),there are still many things to do.
How to fill in?

Countable plural or uncountable nouns
beaches

As shown in the figure, in the pyramid p-abcd, the side pad is an equilateral triangle and perpendicular to the bottom ABCD, and the bottom ABCD is a square. E and F are the midpoint of AB and PC respectively
(1) Verification: PCD of EF vertical plane
(2) Finding the cosine value of dihedral angle a-pc-d

Please give me the picture

English translation
1.hundreds of
2.hurry down from...
3.in advance
4.in history
5.in my view
6.in necessary
7.in one week's time
8.in one's mind
9.in the blink of an eye
10.in the late afernoon
11.in the wild
12.keep fit and healthy
13.Knife-Pole Festivel
14.know...by heart
15.Kowloon Park
15.let..down
16.link method

1. Hundreds
Get down from
3. Advance
4. In history
5. My opinion
6. Need
7. Within a week
8. In one's heart
9. In the twinkling of an eye
10. In the late afternoon
11. In the wild
12. Keep healthy
13. Pole section
14. Remember
15. Kowloon Park
To disappoint
17. Contact information

45 degree right triangle is 12 root sign 2 root sign 2. What about 306090 degree

You mean tangent, sine and cosine
Correspondingly:
30°：√3/3；1/2；√3/2
60°：√3；√3/2；1/2
90 °: nonexistent; 1; 0

What about make the tea?

Make tea make the tea

Given that a, B and C are on the same straight line, ab = 16cm, BC = 10cm, m and N are the midpoint of AB and BC respectively, then Mn is equal to______ ．

There are two cases in this problem: (1) when point C is on the line AB, as shown in the figure, ∵ AC = ab-bc, ab = 16cm, BC = 10cm, ∵ AC = 16-10 = 6cm. And ∵ m and N are the midpoint of AB and BC respectively, ∵ am = 12ab = 8cm, BN = 12bc = 5cm, ? Mn = ab-am-bn = 16-8-5 = 3cm. (2) when point C is on the extension line of line AB, as shown in the figure, ? AC = AB + BC, ab = 16cm, BC = 10cm, ∵ AC = 16 + 10 = 26cm B. So the length of Mn is 3cm or 13cm