Please write down the 99th and 100th numbers in this column Are - 201.2% and - 2.25% in this column? If yes, please indicate their respective numbers? If not, please give reasons If the number of this column is infinite, which number is getting closer and closer?

Please write down the 99th and 100th numbers in this column Are - 201.2% and - 2.25% in this column? If yes, please indicate their respective numbers? If not, please give reasons If the number of this column is infinite, which number is getting closer and closer?

The 99th number is: - 1 / 99
The 100th number is: 1 / 100
Minus 201 1 / 2 is not in this column, because the denominator is the number in the sequence, and the sign of even number is positive
In this column, minus 1.025 is the 2025 number
If this column number is infinite, it will be closer to 0

Look at the numbers, negative half, two-thirds, three-quarters, four fifths, and five sixths, according to their arrangement What is the number 200?

two hundred-201sts

A series of numbers arranged according to a certain rule are: minus half, two thirds, three quarters, four fifths, and five sixths What's the sixth number? What's the 2013 number?

Six out of seven; minus 2013: 2012

Observe the following columns: half, minus two-thirds, one fourth, minus four fifths, one sixth, minus six Come on! (1) The ninth number is (), and the fourteenth is () (2) What is the number 2012? (3) If this set of data is arranged infinitely, which two numbers are getting closer and closer?

The ninth number is one tenth
The fourteenth number is fourteen fifths of the negative
2. The number of 2012 is negative, and the number of 2013 is 2012
3. And 0 and minus one

Arrange the negative 1 / 2, 1 / 3, 1 / 4 and 1 / 6 according to certain rules First line: 1 Second line: - 1 / 2 1 / 3 (1 / 3) Third line: - 1 / 4 1 / 5 - 1 / 6 Line 4: 1 / 7 - 1 / 8 1 / 9 - 1 / 10 Line 5: 1 / 11 - 1 / 12 1 / 13 - 1 / 14 1 / 15 ...... What is the tenth number from left to right in line 20? What is the first number in line n? (formula)

191 part [n (n-1) + 2] / 1 / 2 times the n (n-1) / 2 power of - 1

Given a column of regular numbers: 1 in 2, 3 in 6, 5 in 12, 7 in 20 Then the 6th and 7th numbers in this column are_ 、_.

11/42 -13/56

A series of numbers arranged in regular order: 2, 3, 9 of 2, 27 of 4 , then the sixth number is___

Because 2 × (3 / 2) = 3, 3 × (3 / 2) = 9 / 2, 9 / 2 × (3 / 2) = 27 / 4
Therefore, the number in this row is an equal ratio sequence with 2 as the first item and 3 / 2 as the common ratio,
So the sixth number is 2 × (3 / 2) ^ 5 = 243 / 16
If you haven't learned sequence, you can also get the sixth number by multiplying it by 3 / 2

There is a column of numbers: 3, 5, 9, 17, 33. According to this rule, what is the nth number?

a(n)-a(n-1)=2^(n-1)
a(n-1)-a(n-2)=2^(n-2)
.
a(2)-a(1)=2^(2-1)
After accumulation
A (n) - A (1) = sum of equal ratio sequence!

According to a certain rule, a sequence of numbers is: 3, 5 out of 3, 17 of 7, 33 of 9, 66 of 11 According to this rule, what is the tenth number in this column?

① The law of sign is: positive and negative alternation;
② The rule of denominator is: the denominator of the latter number is 2 times larger than that of the former;
③ The law of the molecule is: the molecule of the latter number is 1 times smaller than that of the former one;
[the sixth number in the question should be 65 of minus 11]
According to the above rules, the sign of the 10th number is negative, the denominator is 19, and the numerator is 1025,
The tenth number in this column is: 1025 out of 19

There is a column of numbers arranged according to the following rule: 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7 The 200th number in this column is______ .

According to the law, if the 200th number is n, then 1 + 2 + 3 + +n-1＜200＜1+2+3+… +n，
∴(n−1)•n
2＜200＜n(n+1)
2，
∴n=20．
So the answer is: 20