What is the rule for the sequence 2, 5, 10, 17?
What is the recursive formula and how do we use it

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Mathematics
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9th - 10th Grade
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sub n = n + 1
A sub n = n^2 + 1
A sub n = 2n + 1
A sub n = n^2 - 1
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does a recursive formula differ from a regular formula?
It uses the next term to find the previous term.
It is based on the previous term to find the next term.
It does not require any previous terms.
It uses a fixed constant to find the next term.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in applying a recursive formula?
Identify the last term in the sequence.
Identify the first term and use it in the formula.
Use a random number as the starting point.
Use the formula without any initial term.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a recursive formula, what does 'a of K + 1' represent?
The sum of all previous terms.
The next term in the sequence.
The previous term in the sequence.
The current term in the sequence.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of applying the recursive formula to find the third term if the first term is 5?
15
26
5
10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What common mistake should be avoided when using recursive formulas?
Using the next term instead of the previous term.
Forgetting to square the term.
Starting with a random term.
Using a different variable for each term.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it important to understand the starting point in a recursive formula?
It helps in finding the last term.
It is not important at all.
It determines the entire sequence.
It only affects the first term.
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