Finding the formula of alternating signs of a sequence

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Mathematics
•
11th Grade - University
•
Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main factor that causes a sequence to alternate between positive and negative signs?
The use of fractions
The presence of an exponent
The addition of numbers
The subtraction of numbers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which operation is suggested as a shortcut to identify patterns in sequences?
Addition
Subtraction
Raising to powers
Division
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between the number 2 and the sequence values discussed?
2 is the denominator of each term
2 is subtracted from each term
2 is the base of the power
2 is added to each term
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you ensure the first term of a sequence is positive when using alternating signs?
By multiplying the exponent by 2
By adding 1 to the exponent
By subtracting 1 from the exponent
By using a negative exponent
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What describes an even number according to the video?
A number that is divisible by three
A number that is always positive
A number that is always negative
A number that is divisible by two
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of raising -1 to an even power?
A negative number
A positive number
Zero
An undefined number
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of adding 1 to the exponent in the sequence?
To make the sequence longer
To ensure the sequence starts with a negative term
To make the exponent even
To simplify the sequence
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