Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Functions question

2023 · 30 Jan · Shift 2 · Q36
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Functions
  5. /2023 · 30 Jan · Shift 2 · Q36

Functions question

2023 · 30 Jan · Shift 2 · Q36

JEE MainMathematicsFunctionsNumerical+4 / −1
Let A={1,2,3,5,8,9}A=\{1,2,3,5,8,9\}A={1,2,3,5,8,9}. Then the number of possible functions f:A→Af: A \rightarrow Af:A→A such that f(m⋅n)=f(m)⋅f(n)f(m \cdot n)=f(m) \cdot f(n)f(m⋅n)=f(m)⋅f(n) for every m,n∈Am, n \in Am,n∈A with m⋅n∈Am \cdot n \in Am⋅n∈A is equal to ‾\underline{\hspace{2cm}}​.
Numerical answer
PreviousNext

More from Functions

  • If the domain of the function f(x)=1+x2[x]​, where [x] is greatest integer ≤x, is [2,6), then its range is2023 · MCQ
  • Let f:R−{2,6}→R be real valued function defined as f(x)=x2−8x+12x2+2x+1​. Then range of f is2023 · MCQ
  • The absolute minimum value, of the function f(x)=​x2−x+1​+[x2−x+1], where [t] denotes the greatest integer function, in the interval [−1,2], is :2023 · MCQ
  • The number of one-one functions f : {a, b, c, d} →{0, 1, 2, ......, 10} such that 2f(a) − f(b) + 3f(c) + f(d) = 0 is ​.2022 · Numerical
  • The total number of functions, f:{1,2,3,4}→{1,2,3,4,5,6} such that f(1)+f(2)=f(3), is equal to :2022 · MCQ
  • The number of bijective functions f:{1,3,5,7,…,99}→{2,4,6,8,….100}, such that f(3)≥f(9)≥f(15)≥f(21)≥…..f(99), is ​.2022 · MCQ
  • Let f(x) be a quadratic polynomial with leading coefficient 1 such that f(0)=p,peq0, and f(1)=31​. If the equations f(x)=0 and f∘f∘f∘f(x)=0 have a common real root, then f(−3) is equal to ​…2022 · Numerical
  • Let f : N → R be a function such that f(x+y)=2f(x)f(y) for natural numbers x and y. If f(1) = 2, then the value of α for which k=1∑10​f(α+k)=3512​(220−1) holds, is :2022 · MCQ