Q7. If f(x) = , x ∈R, then ∑81k=1 f ( 82k ) is equal to 2x+√2 (1) 1.81√2 (2) 41 (3) 82 (4) 81 2
What This Question Tests
This question requires identifying a specific property of the given function, f(x) + f(1-x) = 1, to simplify the summation calculation.
Concepts Tested
Formulas Used
f(x) + f(1-x) = constant for some functions
📚 NCERT Sections This Tests
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
14.2 — Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 · Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
8.2 — Name The Following Compounds According To Iupac System Of Nomenclature:
Chemistry Class 12 · Chapter 8
8.2 Name the following compounds according to IUPAC system of nomenclature: (i) CH3CH(CH3)CH2CH2CHO (ii) CH3CH2COCH(C2H5)CH2CH2Cl (iii) CH3CH=CHCHO (iv) CH3COCH2COCH3 (v) CH3CH(CH3)CH2C(CH3)2COCH3 (vi) (CH3)3CCH2COOH (vii) OHCC6H4CHO-p
📋 Question Details
- Chapter
- Sets Relations Functions
- Topic
- Properties of functions
- Year
- 2025
- Shift
- 28 Jan Shift 1
- Q Number
- Q7
- Type
- MCQ
- NCERT Ref
- Class 11 Mathematics Ch 2: Relations and Functions
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