Home
Class 12
MATHS
A function f from integers to integers i...

A function `f` from integers to integers is defined as `f(x)={n+3, n in od d n/2,n in e v e n` suppose `k in ` odd and `f(f(f(k)))=27` . Then the sum of digits of `k` is__________

A

3

B

6

C

9

D

12

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

Let I be the set of integer and f : I rarr I be defined as f(x) = x^(2), x in I , the function is

Prove that the function f(x)= x^(n) is continuous at x= n, where n is a positive integer

Let : f: N rarr N be defined by f(n)={{:((n+1)/2," if n is odd"),(n/2," if n is even"):} for all n inN . State whether the function f is bijective . Justify your answer.

Let f:N rarr Y be a function defined as f(x) = 4x + 3, where, Y = { y in N:y = 4x + 3 for some x in N }. Show that f is invertible. Find the inverse.

Let f : R - {n} rarr R be a function defined by f(x)=(x-m)/(x-n) , where m ne n . Then,

lf f is a differentiable function satisfying f(1/n)=0,AA n>=1,n in I , then

Integrate the functions f'(ax+b)[f(ax+b)]^(n)

If f: N rarr R be the function defined by f(x) = (2x-1)/2 and g : Q rarr R be another function defined by g(x) = x+2 . Then , gof (3/2) is .......