How did you come up with the formula for mathematics? What are the mathematical formulas?

The formulas of mathematics are usually derived and proved. Mathematicians reason and derive by analyzing specific problems and applying basic principles and axioms to arrive at new mathematical conclusions. In general, a formula is a concise and precise way to describe and calculate various relationships, key angles, or physical properties in a mathematical problem so that researchers can better understand and apply this knowledge.

The emergence of formulas not only greatly facilitates the process of mathematical research, but also facilitates people's exploration and practice of mathematical applications.

After writing open, left = 1 (n+1)-1 (n+2)+1 (n+3)-1 (n+4)+.

The first term is listed separately, and every two items are combined one after that, except for the first term which is positive, the rest are negative, so the left 1 (n+1).

Commonly used mathematical formulas:1. The area of the rectangle is long and wide, and the calculation formula is s=ab.

2. The area of the square is the length of the side and the length of the side, which is calculated by the formula s=a a=a2.

3. The circumference of the rectangle (length and width) 2, the calculation formula c=(a+b) 2.

4. The circumference of the square is 4, and the calculation formula is c=4a.

5. The area of the parallelogram is high at the bottom, and the calculation formula is s=ah.

6. The area of the triangle is 2 at the bottom, and the formula is s=a h 2.

7. The trapezoidal area (upper and lower bottom) is 2, and the calculation formula is s=(a+b) h 2.

8. The volume of the cuboid is length, width and height, and the calculation formula is v=abh.

9. The area of the circle Pi radius squared, calculated by the formula v= r2.

10. The volume of the cube is the length of the edge, the length of the edge, the length of the edge, and the calculation formula v=a3.

11. The volume of the cuboid and the cube can be written as the base area is high, and the calculation formula is v=sh.

12. The volume and bottom area of the cylinder are high, and the calculation formula is v=sh.

1. Circle area: s= r, s= (d 2). d is the diameter, r is the radius).

2. The area of the semicircle: s semicircle = ( r 2) 2. (r is the radius).

3. The area of the circle: S large circle - S small circle = (r 2-r 2) (r is the radius of the large circle, r is the radius of the small circle).

4. The circumference of the circle: c=2 r or c=d. d is the diameter, r is the radius).

5. The circumference of the semicircle: d+(d) 2 or d+ r. d is the diameter, r is the radius).

6. The area of the circle where the fan is located is divided by 360 and multiplied by the angle n of the central angle of the fan, as follows:

s=n/360×πr²。

s= r l 2 r = lr 2 (l is the arc length and r is the fan radius).

Set method Sun Pimu:

1. Mathtype to open the formulator.

2. Click "Style" and select "Math".

3. Enter the formula in the box. (e.g., f=ma) <>

4. Copy the selected formula and paste it into Word, and the mathematical font of the formulator style will be processed and the grip is ready.

sin degree formula.

1. Yudong sin 30 = 1 2

2. sin 45 = root number 2 2

3. sin 60 = root number 3 2

2. COS power formula.

1. cos 30 = root number 3 2

2. cos 45 = root number 2 2

3. cos 60 = 1 2 3. Tan degree formula.

1. tan 30 = root number 3 3

2、tan 45=1

3. Annihilation is tan 60 = Genshi shed number 3

9 a 2 dec c 2 a ac

A 2 10 2 C 2 a 3 ac

a, x, b) 2, a, 3ac

9 a 2 dec c 2 a ac

A 2 a 2 ac ten c 2 ten ac

a-c) 2 ac

a+c)^2=a^2+c^2+2ac

So (a+c) 2-3ac=a 2+c 2+2ac-3ac=a 2+c 2-ac

I remember it was a formula.

The simplification process is as follows:

a^2+c^2-ac

a^2+c^2+2ac-3ac

a^2+2ac+c^2)-3ac

a+c)^2-3ac

So, 9=(a+c) 2-3ac

The formula for the height of water is: h=p (high command g), where h is the height of the water, p is the pressure of the water, the density of the water, and g is the acceleration of gravity.

Math Formula:1.The area of the rectangle = length and width, s = ab

2.The area of the square = the length of the side The length of the side, s = a a = a 3The area of the triangle = base height 2, s=ah 24Area of the parallelogram = base height, s = ah

5.The area of the trapezoid=(upper bottom + lower bottom) height 2, s=(a+b)h 26The area of the circle = pi radius radius, s = r 7Surface area of the cuboid = (length and width + length and height + width and height) 2 = (ab + ah + bh) 2

8.The surface area of the cube = edge length The edge length is 6, s=6 a <>

9.The side area of the cylinder = the circumference of the bottom circle is high, s = ch10The surface area of the cylinder = the upper and lower bottom surface area + the side area, s = 2 r disassembly + 2 rh

11. The volume of the cuboid = length, width and height, and the return v = abh12The volume of the cube = edge length edge length edge length, v = a a a = a 13The volume of the cylinder = the base area is high, and the sock takes v = sh, v = r h14

The volume of the cone = the base area of the height 3, v=sh 3= r h 3

Numerous people have proved that the so-called truth that has come is a kind of knowledge and understanding of the world!

It is changed according to the structure of each algebraic formula. It takes a lot of knowledge!

I wish the landlord success in his studies!

A formula is an idea, a theory, that someone suddenly thinks of or discovers, and then he comes up with it for everyone to guess and prove. After testing and determining that it was correct, it became what we now call the formula.

..To be precise, formulas are the result of people discovering and creating, and having been tested and proven by countless people.

It's a lot like logic, everyone's logic. Formulas are logic, logic you have, logic you don't have.

To use the simplest analogy, first of all, after I discovered it or created it, after I tested it, your test, everybody's test, and confirmed that it was correct, they became what we call formulas. Logic that can be learned and applied by everyone in a literal way.