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Calculation of 36 ° 27 ′ 38 ″ + 133 ° 41 ′ 54 ″
36°27′38〃+ 133°41′54〃
=170°9′32''
38+54=60+32
27+41=60+8
36+133=169
12400 divided by 56
12600÷56
=12600÷7÷2÷4
=1800÷2÷4
=900÷4
=225
Discussion on the number of triangle solutions with sine theorem
If a, B, a are known, SINB = bsina divided by a = m is obtained by sine theorem
When m is greater than 0 and less than 1, B satisfying SINB = m is set as a when it is an acute angle and B as B when it is an obtuse angle,
When a + A is less than 180 degrees, the triangle has several solutions
When a + B ＜ 180 ° the triangle has L2 solutions
Why?
When a + a > 180 ° the triangle has no solution,
Can I get the equal sign???
It can be thought as follows: determine an angle a, determine a line segment AB with one end a and length B on one side of the angle, take point B of the line segment as the center of the circle and a as the radius to make a circle, and the number of intersections between the circle and the other side of angle a is the number of triangular solutions
Fill in the blanks with the past tense of the verb
1._______ (ben)birthday is on the first of january.
2.Tom_______ (have)a birthday party with his friends now.
3.Look!yang ling_______ (draw)a picture.
4.Peter________ (get)up 6:30 every morning.
5.Would you like ________ (swim)with us?
6.Can he _______ (make)a model plane for me?
Maybe he _______ (make)a model plane now.
7.What are those in the bag?They're_______ (strawberry).
8.What does your brother ________ (like)?
He _______ (like)piay the piano.
I want it today. If it's all right, I don't think it's appropriate, but this is the requirement of the topic, 555
According to the context, it seems that the past tense is inappropriate
1 Ben's
2 is having
3 is drawing
4 gets
5 to swim
6 make,is making
7 srawberries
8 like,likes
The relationship between the theoretical system of socialism with Chinese characteristics and Marxist Philosophy
What is the relationship between them?
The theoretical system of socialism with Chinese characteristics is a theoretical system established by the Chinese people in the domestic environment and reality after learning, understanding and transforming Marxist philosophy. It uses the original ideas of Marxist philosophy as a theoretical tool to achieve political goals and serves as the theoretical basis for the development and establishment of new China, After the transformation of China, it has become the ideological source and rudiment of Marxist theory with Chinese characteristics
When the RLC series resonant circuit resonates, the resonant angular frequency W0 is 0
In the case of series resonance, the impedance and capacitive reactance are the same, but the phase is opposite
W0l = 1 / w0c
W0 = √ 1 / LC (root 1 / LC), independent of resistance R
Further combine the basic principles of Marxism with Chinese practice, Chinese history and Chinese culture. What are the specific meanings of Chinese practice, Chinese history and Chinese culture
Chinese practice refers to emancipating the mind and seeking truth from facts
Chinese History: the national conditions of socialism with Chinese characteristics and 5000 years of Chinese culture
Chinese culture: the wisdom of the Chinese people, representing the interests of the overwhelming majority of the people
English translation
Riolet PK pursues mulande @ core thief
You remind me that I used Chinese characters to mark English when I was in school
Reality pK (compete) dreamland at crazy PK
Thank you
The surface area of a cylinder is 533.8cm and the height is 12cm. What is the bottom radius of the cylinder?
The best is arithmetic
Let R be the radius, then
The perimeter of the bottom surface C = 2 π R
Side area = ch = 2 π R * 12 = 24 π R
Base area s = π R & # 178;
Surface area = 24 π R + 2 π R & # 178; = 533.8
Divide both sides by 2 π, and you get
12r+r²=85
r=5
The radius of the bottom surface is 5cm
Prime number combination and decomposition prime factor
1. How many different primes can be made up of two or three of the four cards 1, 2, 3 and 4?
2. How many different combinations can be formed by using several cards of 1,7,7,7?
3. Choose three from the five prime numbers 3, 5, 7, 11 and 13. How many different choices are there if the sum is still prime?
4. Divide 60 pears into even piles so that the number of pears in each pile is equal. How many different methods are there?
5. How many divisors of 1008?
I'd like to ask you math experts
1. Double digit: 13, 23, 31, 41, 43
Three digits: 241, 421
2. Double digit: 77
Three digits: 177, 771, 777
3、3+5+11、3+7+13、5+7+11、5+11+13、7+11+13
4. The number of piles
2 30
4 15
6 10
10 6
12 5
20 3
30 2
60 1
5. Decomposition quality factor: 1008 = the fourth power of 2 × the square of 3 × 7
(4 + 1) × (2 + 1) × (1 + 1) = 30 (pieces) - (index plus one) × (index plus one) × (index plus one) × (index plus one)
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- 11. Calculation: (1) 36 ° 27'38 '' + 133 ° 41'54 '' = () (2) 100 ° - 37 ° 59'45 '' = () (3) 3 ° 23'50 '' × 5 + () （4）73°31'÷4=（） The third question is (3) 3 ° 23'50 '' × 5 = ()
- 12. -5 √ 8 out of 28 * √ 4 out of 3 * √ 56?
- 13. 21 out of 28 is 3 out of 56
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- 15. 18.3 degrees - 26 degrees 34 '=__________________ .
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