Why subtract one from the answer? Who would have this question and why subtract one?

Neither end is planted with a tree, or neither end is counted, so according to this kind of problem, it is difficult to calculate that he must subtract one end of the result, so he must subtract one.

The answer to be tested must be in the way of operation, and his formula is set up in this way, and the result must be tested to be accurate.

Hello, if the answer you calculated is not the same as the standard answer above. So much needs to be recalculated, but if the answer is subtracted, the whole calculation step may be wrong.

Why subtract one from the answer? In the case of the resume, it should be based on him, if the ratio of his answer is sometimes positive and negative, and the resume is sometimes like this, there is a positive and negative value.

Why do you need to subtract one there, who do I think you call for? Now the mobile phone of your unit may be some reason for his one, so to subtract one, you can press the phone or computer again.

But why minus one? Why should I ask this question? Such an inexplicable question, I look inexplicable, you don't have all the questions, alas, what do you call me your question?

Because some things have to be used in simple rooms, they can't be rounded.

Your question is difficult because your question is why the answer is minus one, but you don't say what kind of answer it is, so no one else can do anything about your question.

If the answer is subtracted by one, it is convenient to choose, and he has not identified an item, so subtracting one can determine an accurate answer.

This could be the theory you learned, and it needs to be minus one, or it just looks like this.

Some of the questions are so clever that you need to think hard to get the right answer.

A lot of things explain what you ask, otherwise you can't do it.

It's actually very simple, and we know that this answer is exactly what it looks like.

I don't know exactly what kind of problem you are experiencing, you can only help you see the answer if you describe the problem clearly, why bother?

In fact, it is very simple, just like finding a rule, the first row is m seats, m=m+1-1, the second row is m+1=m+2-1, the third row is m+2=m+3-1, then the nth row is m+n-1.

Math:

Mathematics is the study of concepts such as quantity, structure, change, space, and information. Mathematics is a general means for humans to strictly describe the abstract structure and pattern of things, and can be applied to any problem in the real world, and all mathematical objects are inherently artificially defined. In this sense, mathematics belongs to the formal sciences, not the natural sciences.

Different mathematicians and philosophers have a range of opinions on the exact scope and definition of mathematics.

Since each row in the back has one more seat than the row in front, let's assume that the number of seats in the first row is m, the second row is one more than the first row, and the number of seats in the second row is m+1;

The third row has one more seats than the second row, and the number of seats in the third row is M+1+1;

There is one more seat in the 4th row than in the 3rd row, and the number of seats in the 4th row is m+1+1+1;

There is one more seat in the nth row than in the n-1 row, and the number of seats in the nth row is M+1+......1；

Since we don't know how many n is, we can look at the example of the number of seats in front of us:

M+1 is the number of seats in the second row, which is also equal to M+2-1;

M+1+1 is the number of seats in the third row, which is also equal to M+3-1;

M+1+1+1 is the number of seats in the 4th row, which is also equal to M+4-1;

m+1+……1 is the number of seats in the nth row, which is also equal to m+n-1, which is the final answer.

This question is a multiple-choice question, so just substitute the answer, you bring the second row, and only m+n-1 meets.

Why subtract 1

First of all, we need to understand what is the month-on-month comparison, and the comparison between the current period and the previous period. Then the month-on-month growth rate is the difference between the current period and the previous period, divided by the number of the previous period (this is the general growth rate calculation, nothing special).

For example, if the monthly salary is 1,000 yuan and the last month's salary is 800 yuan, then the month-on-month increase is 200 yuan, and the month-on-month growth rate is (1000-800) 800=25%. In the same way, the month-on-month growth rate = (the number of the current period - the number of the previous period) The number of the previous period is then simplified, and it becomes the number of the current period divided by the above number of periods and then subtracted by 1.

Mystery: Three. Explanation: One word, minus sign -, and one more word, combined together, the word obtained is not zero, but three.

Interpretation of 1 and 3.

1. The amount obtained after adding two to one.

2. Indicates a majority or multiple times.

2. Etymological explanation.

This character was first seen in the Shang Dynasty oracle bone inscription, which is composed of three horizontals, each of which is a table number symbol. The original meaning of three is the name of the number, which is an integer between two and four, and it also indicates which ordinal number is third, and by extension, it means multiple times or majority.

3. Compounds. Three Masters, Again.

3. Three Gorges, deflated.

3. Samadhi, etc.

Stroke order: <>

Explanation of the compounds: 1, 再三 zài sān again and again: 再四. In other words. Consider. Retain. Show your appreciation. Search code included.

2. 三心二意 sān xīn èr yì describes hesitation, lack of determination, or lack of single-mindedness: since it has been decided, it cannot .

3, two sides three knives liǎng miàn sān dāo metaphor to play two-faced techniques, one set in front of the face, one set behind the back.

4. 火冒三zhang huǒ mào sān zhàng describes the anger as particularly great.

5. Three Gorges sān xiá The abbreviation of the Three Gorges of the Yangtze River.

The value range of int is -2 31 +2 31-1 Why subtract one, because negative and non-negative numbers should be evenly distributed. Note that it is a non-negative number, not a positive number. -2 3 -1 has a total of 2 31 numbers, and 0 2 31-1 also has 2 31 numbers, which happens to be divided in half.

Hence 2 31-1. (0,1,2,3,4 is a total of 5 numbers).

？-23) 8=1, illustrated? -23=8, so? It's equal to 31, and the answer is 31

This is a problem with pitfalls.

First, you can distinguish the following two descriptions:

How many times is A is B? a/b

How many times more A than B? (a/b)-1

Your topic is the second situation, which asks how many more tertiary hospitals than secondary hospitals were in 2015? And the answer is a fold, that is, how many times more?

So subtract the value of a b = 1.

Upload**Please put it right, I see that my neck hurts.

The crux of the matter is how many times more, and the direct division yields several times, so it is necessary to subtract one.

It asks you how many times more, that is, the part of the more divided by the secondary hospital, that is, (

If it only asks you how many times you are, then don't use -1

Because it is several times more, it is necessary to remove this base number from last year, so it is necessary to subtract 1.

Because it is a multiplier to calculate the extra multiplier, it is necessary to subtract 1 from the total multiplier

This is the arithmetic method for comparing A and B.

Asking how much b is more than a, of course it is =b-a. If you ask how many times b is a, it is =(b-a) a=b a-a a=b a-1!

126-54) 54 = 126 54-54 54 = 126 54-1 = times).

This minus 1 refers to the subtraction of the per capita fee of a secondary hospital, and the rest is the excess.

By observing the questions and options, the question asks how many times more, so dividing two numbers and subtracting one is a few times more, and simply dividing two numbers means that the former is several times the latter, not several times more.

Division is a multiple, and subtracting one is an excess.

Look at the question stem, ask how many times more, not how many times, so subtract one.

The question is how much more, subtract the original 1.

This is the question of how many times there are, not how many times, and it should be subtracted by 1 after the result obtained to be the correct answer to the question.

Make all of them, and finally subtract one more and the result will come out.

Here the test is not how many times, but how many times, so the number of secondary hospitals should be deducted.

Because the question is several times more, that 1 means that the per capita hospitalization cost of public level 2 hospitals in 2015 and, 1 represents. Actually, that's how it is calculated (. For example, 6 is several times more than 2.

6 2-1 2 and (6-2) 2 2 mean the same thing. 1 here stands for 2.

I came back to work in the morning and did what I did.

It's not that you look at the picture like this, I feel tired.

You're a fixed formula, right?

It's probably not a good phone! OK if needed! Now who spends that money to get a mobile phone!

It's probably not a good phone! OK if needed! Now who spends that money to get a mobile phone!

It's probably not a good phone! OK if needed! Now who spends that money to get a mobile phone!

It's probably not a good phone! OK if needed! Now who spends that money to get a mobile phone!

The formula is cos2x=2cos square x-1, which can be viewed like this: cos2x=cos(x+x)=cosxcosx-sinxsinx=cos square x-sin square x

And because sin square x + cos square x=1

So 1-cos square x = sin square x

Bringing in formula cos square x-(1-cos square x) = cos square x-1 + cos square x = 2cos square x-1