alleryExpanding to index twelve by the triangle needs all rows written till index:
ATwelve
BTwenty
CThirty
DThirteen
Answer & Solution
Correct answer: A. Twelve
1. Each row depends on the one before it.
2. Reaching a row means writing every row up to it.
3. This can be done by writing all the rows of Pascal's triangle till index 12.
4. So the answer is twelve.
_Source: syllabus Mathematics, Ch 7 'Binomial Theorem'_
Keep practising Binomial Theorem
Browse all Binomial Theorem questions for AP Intermediate 1st Year, or explore more Mathematics topics.
Related questions
After finding the pattern, we can write the expansion to any positive integral:Pascal's triangle has a one at its top vertex and runs down two:Higher powers of a binomial can also be expanded using Pascal's:Adding one, two and two, one from the index two row gives which pair?Observing the coefficient pattern lets a row be written without the:The sought rule avoids writing which rows of Pascal's triangle?Why is a general rule sought instead of Pascal's triangle?Building Pascal's triangle can be continued till any index of our: