Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The coefficient of a 3 b 6 c 8 d 9 ef in the expansion of (a + b + c – e – f) 20 is -
Text Solution
Verified by ExpertsThe correct answer is:
D
3 + 6 +8 + 9 +1 + 1 = 28 > 20
⇒ coefficient is zero because no term is there.
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