Q63.If the coefficients of x7 in (x2 + bx1 )11 and x−7 in (x − bx21 )11, to: (1) 2 (2) −1 (3) 1 (4) −2
What This Question Tests
The problem requires applying the general term formula for binomial expansion twice, setting the powers of x to 7 and -7 respectively, and then equating the coefficients to solve for the unknown parameter 'b'.
Concepts Tested
Formulas Used
T_r+1 = nCr * a^(n-r) * b^r
📚 NCERT Sections This Tests
5.11 — Draw All The Isomers (Geometrical And Optical) Of:
Chemistry Class 11 · Chapter 5
5.11 Draw all the isomers (geometrical and optical) of: (i) [CoCl2(en)2] + (ii) [Co(NH3)Cl(en)2] 2+ (iii) [Co(NH3)2Cl2(en)]+
1.3 — Define The Following Terms:
Chemistry Class 11 · Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
5.12 — Write All The Geometrical Isomers Of [Pt(Nh3)(Br)(Cl)(Py)] And How Many Of
Chemistry Class 11 · Chapter 5
5.12 Write all the geometrical isomers of [Pt(NH3)(Br)(Cl)(py)] and how many of these will exhibit optical isomers?
📋 Question Details
- Chapter
- Binomial Theorem
- Topic
- General term of a binomial expansion
- Year
- 2021
- Shift
- 27 Jul Shift 1
- Q Number
- Q63
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 8: Binomial Theorem
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