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In the first term of the expansion, the index of b is:
AOne
BTwo
CFour
DZero
Answer & Solution
Correct answer: D. Zero
1. It rises by one in each later term.
2. It ends at n in the last term.
3. It starts at zero.
_Source: NCERT Class 11 Mathematics, Ch 7 'Binomial Theorem'_
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