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Binomial Theorem
Binomial Expansion, Sum of Coefficients
jee_main_2026_april_5_shift_1
Grade 12

Question:

The sum of the coefficients in the expansion of (1 - 2x + 3x²)^8 is:
A. 2^8
B. 3^8
C. 5^8
D. 7^8

Step-by-Step Solution

Key Concept: Sum of coefficients = value at x = 1.
Step 1: Sum of coefficients = f(1) = (1 - 2 + 3)^8 = 2^8.
Correct Answer: A
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