alleryWhat number appears at the beginning and end of each row of the triangle?
AThe number two
BThe number one
CThe number nine
DThe number six
Answer & Solution
Correct answer: B. The number one
1. Every row is bounded by the same value.
2. That value never changes down the sides.
3. 1 is present at the beginning and at the end of each row.
4. So the answer is one.
_Source: syllabus Mathematics, Ch 7 'Binomial Theorem'_
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