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Functions : Algebra Practice Questions

Functions question tested in the quantitative reasoning / aptitude section could range from very easy to medium level difficulty questions in CAT. The easier variants are tested in the quant section of GMAT and the GRE. Concept tested includes finding value of an unknown, determining the domain, codomain and range of functions, determining whether the given function is odd, even or neither odd nor ever. Concepts including whether a function is an invertible function, into function, onto function are also occasionally tested only in IIM's CAT.

  1. If f(x2 – 1) = x4 – 7x2 + k1 and f(x3 – 2) = x6 – 9x3 + k2 then the value of (k2 – k1) is _____

  2. If f(2, 7) = 57 and f(1, 6) = 37, what is the value of f(3, 10)?

    1. 107
    2. 127
    3. 147
    4. None of these

    Concept: Identifying a function

  3. Which of the following is not an odd function?

    1. f(x) = -x3
    2. f(x) = x5
    3. f(x) = x2 - x
    4. f(x) = |x|3

    Concept: Odd and Even Functions

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XAT TANCET Practice Questions - Listed Topic wise

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