The sum 1 – 2 + 3 – 4 _ _ _ _ _ + 47 – 48 + 49 is
A) 0 B) 24 C) 25 D) (49 50)/2
Answers
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0
Answer:
a. 0
we r subtracting one value and adding
so the final result will be 0
Answered by
1
Concept introduction:
A summation, also known as a sum, is the outcome of adding two or more numbers or quantities. There are always an even number of terms in a summation. There may be only two terms, or there could be one hundred, thousand, or a million. There are summations with an infinite number of terms.
Given:
Here the expression given .
To find:
We have to find the the value of the summation.
Solution:
According to the question,
We have pairs of numbers where there’s a positive followed by a negative with a one-greater absolute value, giving
Final answer:
So, the final answer of the question is .
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