Q66.Let the coefficients of three consecutive terms in the binomial expansion of (1 + 2x)n be in the ratio 2 : 5 : 8 . Then the coefficient of the term, which is in the middle of these three terms, is
What This Question Tests
This problem involves using the ratio of consecutive binomial coefficients to find the value of 'n' and then calculating a specific coefficient.
Concepts Tested
Formulas Used
Tr+1 = nCr a^(n-r) b^r
nCr/nCr-1 = (n-r+1)/r
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📋 Question Details
- Chapter
- Binomial Theorem
- Topic
- Coefficients in binomial expansion
- Year
- 2023
- Shift
- 29 Jan Shift 1
- Q Number
- Q66
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 8: Binomial Theorem
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