jee_main_2025_24_jan_evening - Relations and Functions Topics

Master these core formulas and structures to solve almost any past paper question.

Sample Questions in this Chapter

QUESTION #52 One-One and Onto Functions
The function f:(-∞,∞)arrow(-∞,1), defined by f(x)= 2x-2-x2x+2-x is:
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QUESTION #71 Number of Functions under Constraints
Number of functions f:1,2, ,100arrow0,1, that assign 1 to exactly one of the positive integers less than or equal to 98, is equal to \_\_\_\_.
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Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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Practice past-year questions one chapter at a time. Pick an exam → subject → chapter and get every PYQ for that topic — pulled together from all past papers — with the chapter's key formulas alongside.

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