Discrete Mathematics Entrance Exams Online Exam Quiz
Discrete Mathematics Entrance Exams GK Quiz. Question and Answers related to Discrete Mathematics Entrance Exams. MCQ (Multiple Choice Questions with answers about Discrete Mathematics Entrance Exams
If f is a function defined from R to R, is given by f(x) = 3x – 5 then f –1(x) is given by __________
Options
A : 1/(3x-5)
B : (x+5)/3
C : does not exist since it is not a bijection
D : none of the mentioned
If f is a function defined from R to R, is given by f(x) = x2 then f -1(x) is given by?
Options
A : 1/(3x-5)
B : (x+5)/3
C : does not exist since it is not a bijection
D : none of the mentioned
A function f(x) is defined from A to B then f -1 is defined __________
Options
A : from A to B
B : from B to A
C : depends on the inverse of function
D : none of the mentioned
For an inverse to exist it is necessary that a function should be __________
Options
A : injection
B : bijection
C : surjection
D : none of the mentioned
The solution to f(x) = f -1(x) are __________
Options
A : no solutions in any case
B : same as solution to f(x) = x
C : infinite number of solution for every case
D : none of the mentioned
f(x) is a bijection than f -1(x) is a mirror image of f(x) around y = x.
Options
A : True
B : False
C :
D :
For some bijective function inverse of that function is not bijective.
Options
A : True
B : False
C :
D :
Let f(x) = x then number of solution to f(x) = f -1(x) is zero.
Options
A : True
B : False
C :
D :
For any function fof -1(x) is equal to?
Options
A : x
B : 1
C : x2
D : none of the mentioned
If f(x) = y then f-1(y) is equal to __________
Options
A : y
B : x
C : x2
D : none of the mentioned
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