Q67.If the coefficients of x7 in (ax2 + 2bx1 ) 11 3bx2 and x−7 in (ax 1 ) (1) 729ab = 32 (2) 32ab = 729 (3) 64ab = 243 (4) 243ab = 64
What This Question Tests
This question requires finding the general term for two different binomial expansions and then equating the coefficients of specified powers of x to solve for the product of two variables.
Concepts Tested
Formulas Used
T_(r+1) = nCr a^(n-r) b^r
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📋 Question Details
- Chapter
- Binomial Theorem
- Topic
- General term of binomial expansion
- Year
- 2023
- Shift
- 06 Apr Shift 2
- Q Number
- Q67
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 8: Binomial Theorem
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