High School What Does the Sum of Coefficients in the Binomial Theorem Expansion Represent?

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The sum of the coefficients in the binomial theorem expansion of (1+x)^n is obtained by substituting x with 1. This results in the expression simplifying to 2^n, indicating that the sum of the coefficients equals 2 raised to the power of n. This reflects the total number of subsets of a set with n elements. Understanding this concept is crucial for grasping the implications of the binomial theorem. The discussion highlights the importance of this substitution in revealing the significance of the coefficients.
Sreekar adithya
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Stuck at understanding binomial thorem.
In the general expansion of (1+x)^n what does the sum of the coefficients mean?
 
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Sreekar adithya said:
Summary:: Stuck at understanding binomial thorem.

In the general expansion of (1+x)^n what does the sum of the coefficients mean?

The sum of the coefficients can be found by setting ##x = 1##.
 
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Here is a little puzzle from the book 100 Geometric Games by Pierre Berloquin. The side of a small square is one meter long and the side of a larger square one and a half meters long. One vertex of the large square is at the center of the small square. The side of the large square cuts two sides of the small square into one- third parts and two-thirds parts. What is the area where the squares overlap?

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