Question 2: What does it mean in mathematics? Let me answer you ~ ~ This is just a hypothetical operation or abbreviation. For example, two real numbers A and B need to calculate (a+b)2-b to get the result. The operation process is to find the sum of A and B, then the square of the sum, and finally subtract B. We can artificially specify an operation symbol * to represent this process. Writing a*b as a*b=(a+b)2-b is actually a shorthand for the operation process of (a+b)2-b, and the specific operation process is specified by the title. I am just giving an example. If the topic is a*b = AB+B, then 3*2=3? 2+2=8 You can think of a*b as the abbreviation of AB+B, and * is just a symbol that we write casually, indicating the operation process. It can also be expressed by other strange symbols. This is similar to a function expression, just like y=f(x), except that f(x) is called the mapping of x in the function.
Question 3: What does summation mean in mathematics? Give a simple example:
1+2=3
Where 1 and 2 are called addends, and the following 3 are called the sum of 1 plus 2. In other words, sum is the result of addition.
Give you a formula and find the result of their addition, which is called summation.
Question 4: What do cardinality and height mean in mathematics? From a vertex of a triangle to its opposite side (or the straight line where the opposite side is located), the line segment between the vertex and the vertical foot is called the height line of the triangle, which is called height for short. By definition, the height of a triangle is a line segment. Because a triangle has three sides, it has three heights. Draw a vertical line from one point on one side of the parallelogram to the other. The line segment between this point and the vertical foot is called the height of parallelogram! The side where the vertical foot is located is called the base of the parallelogram.
Question 5: What does (/) mean in mathematics? It means "split". You can use it during the exam, but you should pay attention to the norms, such as.
(1+2)/(2+4) is different from 1+2/2+4.
When I was in high school, I seldom used "small" to represent Divison.
Usually expressed as a fraction,
Question 6: lg and in mathematics! What does this mean? 1.lg is a common logarithmic symbol based on 10. If there is any number a (a >; 0) is the base, which is represented by log, and the logarithm with the base of e(=2.7 183) is called natural logarithm, which is represented by ln, such as LG2, LOGA8, LN 10. ...
2.！ It's a factorial symbol, 4! = 1×2×3×4=24; n！ = 1*2*3*...*(n- 1)*n
(The product of n integers starting from 1 is called the factorial of n, and n! Representative)
Question 7: What do ∏ and ∠ and * mean respectively in mathematics? Joint multiplication
Question 8: What does sum mean in mathematics? It means factorial ~
Like 5! =5*4*3*2* 1;
I wish the students academic progress ~
Question 9: What does it mean in mathematics? Let me answer you ~ ~ This is just a hypothetical operation or abbreviation. For example, two real numbers A and B need to calculate (a+b)2-b to get the result. The operation process is to find the sum of A and B, then the square of the sum, and finally subtract B. We can artificially specify an operation symbol * to represent this process. Writing a*b as a*b=(a+b)2-b is actually a shorthand for the operation process of (a+b)2-b, and the specific operation process is specified by the title. I am just giving an example. If the topic is a*b = AB+B, then 3*2=3? 2+2=8 You can think of a*b as the abbreviation of AB+B, and * is just a symbol that we write casually, indicating the operation process. It can also be expressed by other strange symbols. This is similar to a function expression, just like y=f(x), except that f(x) is called the mapping of x in the function.
Question 10:! What does it mean in mathematics? Factorial multiplication
n！ = 1x2x3x ... series