Q63.Let An = ( 34 ) −( 43 ) 2 + ( 43 ) 3 −… + (−1)n−1( 43 ) n , so that Bn > An , for all n ≥p is (1) 5 (2) 7 (3) 11 (4) 9
What This Question Tests
This question involves calculating the sum of a finite geometric series and then an infinite geometric series, and solving an inequality to find the least natural number satisfying a given condition.
Concepts Tested
Formulas Used
S_n = a(1-r^n)/(1-r)
S_infinity = a/(1-r) for |r|<1
📚 NCERT Sections This Tests
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?
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.
📋 Question Details
- Chapter
- Sequences & Series
- Topic
- Geometric Progression
- Year
- 2018
- Shift
- 15 Apr Shift 2 Online
- Q Number
- Q63
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 9: Sequences and Series
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