alleryObserving the coefficient pattern lets a row be written without the:
AEqual rows
BExtra rows
CEmpty rows
DEarlier rows
Answer & Solution
Correct answer: D. Earlier rows
1. The combinatorial form gives each entry directly.
2. No accumulation from above is needed.
3. We can now write the row of Pascal's triangle for any index without writing the earlier rows.
4. So the answer is the earlier rows.
_Source: syllabus Mathematics, Ch 7 'Binomial Theorem'_
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