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In the last term of the expansion, the index of b is:
AThe value n
BThe value 1
CThe value 0
DThe value 2
Answer & Solution
Correct answer: A. The value n
1. It starts at zero in the first term.
2. It rises by one each time.
3. It ends at n.
_Source: NCERT Class 11 Mathematics, Ch 7 'Binomial Theorem'_
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