Solution: What is the sum of the coefficients of the expansion (2x – 1)^20?

What is the sum of the coefficients of the expansion (2x – 1)^20? How to find the sum of the coefficients of the expansion?

What is the sum of the coefficients of the expansion (2x – 1)^20?

Problem Statement: ECE Board November 1995

What is the sum of the coefficients of the expansion (2x – 1)^20?

Problem Answer:

The sum of the coefficients of the expansion is 0.

Solution:

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