Sigma Math

Flashcard
•
Mathematics
•
KG
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is Sigma?
Back
Sigma is a mathematical symbol (Σ) used to represent the sum of a series of numbers.
2.
FLASHCARD QUESTION
Front
What does Sigma represent in mathematics?
Back
In mathematics, Sigma represents the summation of a sequence of numbers.
3.
FLASHCARD QUESTION
Front
How do you calculate the sum using Sigma notation?
Back
To calculate the sum using Sigma notation, you identify the starting and ending values and add the numbers in that range.
4.
FLASHCARD QUESTION
Front
What is the formula for the sum of the first n natural numbers?
Back
The formula is Σ(n) = n(n + 1)/2.
5.
FLASHCARD QUESTION
Front
What is an example of Sigma notation?
Back
An example is Σ(i=1 to 5) i, which means 1 + 2 + 3 + 4 + 5.
6.
FLASHCARD QUESTION
Front
What does the index in Sigma notation represent?
Back
The index in Sigma notation represents the variable that changes as you sum the series.
7.
FLASHCARD QUESTION
Front
What is the significance of the upper limit in Sigma notation?
Back
The upper limit indicates the last number to be included in the summation.
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