2. A bear, starting from point P, walks due south for one mile, then changes direction, walks due east for one mile, then turns left and walks due north for one mile. This is the point P that he has just arrived at. What color is this bear?
Answer:
1, on the 29th day, it opened twice as much as the previous day.
2, white, point P is the North Pole.
This is the problem that my math teacher gave me when I first entered high school! )
The more math teaching plans in senior high school, the better. Thank you for trying something that is not necessarily simple, but moderately difficult, can reflect your level, and is not too simple. As for lesson plans, there are many. You can find someone who is good at it. :doc . dang zhi ./list/c-3 1-t- 1
The more crossword puzzles, the better. What's the answer? 1 (typing) Where is the second wife?
2 (type a word) interrupt thinking
3 (an idiom) 100-meter race.
4 (type a word) Person-to-person call
5 (type a word) just once.
6 (type a word) A decisive and powerful man
7 (type a word) Around dusk
8 (typing) pushed away and came to the booth.
9 (type) Move to a comfortable place.
10 (one character) four-sided incomplete horse
1 1 (type a word) She won't answer the phone.
12 (one word) comes last.
13 (one word) view of reunion
14 (type a word) The tables and chairs are all ready.
15 (type a word) Everyone takes the crosswalk.
16 (type a word) decisively.
17 (type a word) One foot a day.
18 (one word) water wharf pump
19 (one word) big box cannot be broken.
20 (type) Smoking in restricted areas to prevent fire.
2 1 (one word) fierce horizontal area
22 (one word) Large factories use more electricity.
23 (typing) I want to talk, but I can't hear the sound of water.
24 (typing) malicious, can't say anything.
Twenty-five (one word) is worth it Both on these two points.
26 (one word) Tianding can be imported.
27 (type a word) Erxiaojie
28 (type a word) A song sings to Cao in the sunset.
29 (one word) is surrounded by mountains and waters.
30 (type a word) The rising sun is not equal to nine.
3 1 (one word) wave goodbye to the troops
32 (type a word) If the orthography is missing a horizontal line, don't stop guessing.
33 (type) People are not in their place.
34 (one word) Cyclops Province
35 (typing) The sunset is fragrant, but it washes away a little baldness.
36 (type a word) has a head and a tail, with four mouths in the middle.
37 (type a word) A small mistake makes a big mistake.
38 (typing a word) is a clever word, with eight feet on all sides.
39 (type a word) bask in the sun at dusk
40 (type a word) The arrow will pierce the heart.
4 1 (one word) before taking office, after failing the list.
42 (one word) After the poor peasants are poor to decibels.
43 (type) CCTV Changcao English.
44 (one word) people's building health
A man in a straw hat is standing on a piece of wood drinking tea.
1. A dog stopped barking when it crossed the wooden bridge (to use an idiom).
2. The eleventh book (type an idiom)
3. The ingredients of birth control pills (in medical terms)
4. Blue knife and blue gun
A woman has been married and has been married many times (to use an idiom).
6. Sheep call eagles (playing idioms)
1. Take a look at (wood) and never forget (king)
2. Unbelievable (this book 1 1)
3. Antibiotics
4. Invisibility (blue)
All previous efforts were in vain.
6 Yang Feng (sheep phone) disobeys Yin (eagle: "Hello!" " " )
The tree has tears in its heart.
All western beauties want it.
Holding chin handle
People are near you.
Heart and death depend on each other and forget each other.
Tell me about yourself.
It's been raining.
White spoon
Both children are fine.
It is difficult to live in another family.
The word "mountain" points to the tip, and the four mouths are closely connected. Lao Wang sits in the middle, divided into two sides (guess a word)-answer: Tian.
Second young lady (type a word)-answer: posture (second daughter)
One yin and one yang, one short and one long, one day and one night, one hot and one cold (guess a word)-answer: Ming.
Uncle's eye, Pepsi loves to care about it (type a word)-answer: Du.
Look at the horse on the left, look at it on the right, look at it together, and step on the sand of Wan Li-answer: camel (horse+it) doesn't talk, guess a word, and the answer is: kiss.
Unreasonable people, guess the answer is: land.
There is no mouth in the middle. Guess a word and the answer is: Bu.
The Mid-Autumn Night is overcast. Guess the answer is: cells.
Guess a word in Chinese and the answer is: Wow.
Kiss each other and guess the words. The answer is: Lu.
Fifty pairs of ears, guess a word and the answer is: Mo.
Go home in five days, plant a tree outside and guess a word. The answer is: Wu.
Less than 60, more than 80, guess a word and the answer is: Ping.
Public and forget private, guess a word and the answer is: eight.
Inverse ratio, guess a word and the answer is: North.
There are no two in the sky, but every family has them. Guess the answer is: people.
Guess a word every day, and the answer is: hey.
Where is madam going? Guess a word. The answer is: two.
Madam, guess the answer is: husband.
Sun Wang, guess a word and the answer is: Wang.
The sun sets in the west and the moon hangs in the east. Guess the answer is: Ming.
The sun hangs on the top of the tree. Guess a word and the answer is: fruit.
Confucius climbed the mountain and guessed the answer: Yue.
Is this enough?
Let's talk about the dynamic problems of junior high school mathematics circle, the more the better, not to mention the problem is solved, hehe, give the question. .......................
Who has one-on-one tutoring materials for mathematics in Dongyang junior and senior high schools? The more, the better. Compulsory1:pan.baidu./s/1o8dmsi2
Compulsory 2: pan.baidu./s/ 1b2znqQ
Compulsory course 3: pan.baidu./s/ 1mi3HbwG
Compulsory course 4: pan.baidu./s/ 1dE7IOs5
Compulsory five: pan.baidu./s/1c180qao.
The more BBS, the better. Answer over!
What else can I give you to help you find the answers to high school math problems?
Ah!
This is a basic problem in the range problem of trigonometric function in senior high school. The first three friends provided good solutions and processes, and the third friend's method is the one we usually use the most. The basic idea is: transform the function into an equation about sine and cosine, and then transform it into sine or cosine by auxiliary angle method, and then the values of sine and cosine are [- 1, 1].
From cosx+2, we can see that x is a real number.