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Recent questions tagged functions

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1 answer
36
Let A={x,y,z}. The number of relations containing (x,y) and (x,z) which are reflexive and symmetric but not transitive is?
1 votes
1 answer
37
1 votes
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38
2 votes
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39
If $x$ is real, then the value of $x^{2}– 6x + 13$ can never be _____
1 votes
1 answer
40
Let X and Y be two sets having n elementseach. Then the total number of bijectivefunctions from X and Y is(A) n (B) 2n(C) n! (D) 2n
1 votes
2 answers
41
Find inverse in a*b=a+b-ab for all a,b belongs to Q-{-1}. where Q is a rational number?please explain how the inverse will satisfy the equation of inverse(a*b=b*a=e)