Yesterday, I read a story book very interesting

Yesterday, I read a story book very interesting

It's very interesting

We should improve our work continuously. I gave two old and new story books to my cousin

The first sentence is the improper collocation of words
Revision: we should constantly improve our work level
The second sentence is the ambiguity between words (two or more meanings)
First revision: I gave two new storybooks to my cousin
The second modification: I gave two old story books to my cousin
Third modification: I gave a new story book and an old one to my cousin

On the application of sine and cosine theorem
1: In known triangle ABC, ab = 4 √ 3, AC = 2 √ 3, ad is the middle line on the side of BC and ∠ bad = 30 ° to find the length of BC
2: A = 3, B = 2, the middle line on the side of AB is 2, find ∠ a, ∠ B, ∠ C and C

Extend ad to e to make ad = De
connect BE.CE It is easy to prove that acbe is a quadrilateral, so be = AC = 2 times root sign 3 = AB / 2. Because bad = 30, AEB = 90 and angle B60 can be obtained from sine theorem, so BAC = 120 can be obtained. BC = 2 times root sign 21 can be obtained from cosine theorem
2. Vector Ca + vector CB = 2, vector CD
The square of two sides leads to COSC = 1 / 4. Then the solution of cosine theorem leads to ab = radical 10. If the size of three sides is determined, cosa = (radical 10) / 8. CoSb = (radical 10) / 4 can be easily obtained by cosine theorem
So C = root 10. A.B.C can be expressed by inverse trigonometric function

All the verbs in English are expressed in the form of ing

In a word, the situation of adding ing is as follows: 1. It's better to teach fish than to teach fish. 2. It's better to add ing directly, such as play play eat eating looking ski skiing. 2. It's better to end with silent e. it's better to add ing, such as make making use using skate skiing. 3

The law of negation
Wheat plant wheat grain wheat bead is wrong, wheat grain wheat bead is right? Why is it right to produce grain - grain is consumed - grain production is right, grain is consumed - grain is produced - grain is consumed is wrong? I don't understand the middle relationship! Is the baby father baby, father baby father all wrong or which one is right?

First of all, you have to know the connotation of the law of negation of negation. The law of negation means that things first go through the process of affirmation, that is, everything is positive, and then go through the process of negation, that is, everything is negative, and then things or people deny themselves, and then turn to a more positive process

How do the plural forms of nouns change?
Such as the title

In the triangle ABC, a, B and C are the opposite sides of a, B and C respectively, and a = 1 / 2C + bcos. If the triangle area is root 3, the minimum value of B is obtained
Angle c

Can we use the plural form when English words and nouns are used as attributives?

Except man and woman, we can't use the plural form

In known triangle ABC, ad is the midline on the edge of BC. If AC is 4cm longer than AB, the perimeter of triangle abd is () cm less than that of triangle ADC

4cm less

Greatest common divisor and least common multiple
Two double digits, their maximum is 8, and the minimum common multiple is 96
It's better to have a process,
My intelligence is a little bit poor, the explanation is more detailed
"Yes" is ten. look down

96=8*3*4
So these two numbers are
8*3=24
8*4=32