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Which one of the following is a bijectiv...

Which one of the following is a bijective function on the set of real numbers ?

A

`2x -5`

B

`|x|`

C

`x ^(2)`

D

`x ^(2) +1`

Text Solution

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The correct Answer is:
A
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TARGET PUBLICATION-SETS, RELATIONS AND FUNCTIONS-COMPETITVE THINKING
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  2. The set A has 4 elements and thse set B has 5 elements, then the numbe...

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  3. Which one of the following is a bijective function on the set of real ...

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  4. Let f : R to R be defined by f (x) = x ^(4), then

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  5. Let the function f:R to R be defined by f(x)=2x+sin x. Then, f is

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  6. Let f:N->N be defined by f(x)=x^2+x+1,x in N. Then is f is

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  7. The function f : R -> R is defined by f (x) = (x-1) (x-2) (x-3) is

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  8. A function f from the set of natural number to integers defined by ...

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  9. Let f:N->N be defined as f(n)= (n+1)/2 if n is odd and f(n)=n/2 if n i...

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  10. Let N be the set of all natural numbers, Z be the set of all integers ...

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  11. The function f :R to R defined by f (x) = e ^(x) is

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  12. f(x)={(x", if x is rational"),(0", if x is irrational"):}, g(x...

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  13. If x ne 1 and f (x) =(x+1)/(x-1) is a real function, then f (f(f(2))) ...

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  14. Let A" "=" "{-1," "0," "1," "2} , B" "=" "{-4," "-2," "0," "2} and f,g...

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  15. If f: R toS, defined by f(x) = sin x -sqrt(3) cos x + 1, is onto then ...

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  16. The function f: X -> Y defined by f(x) = sin x is one-one butnot ont...

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  17. If f (x) = (x ^(2 ) -10/( x ^(2) +1))), for every real numbers. Then t...

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  18. Domain of the function f(x)=sqrt(2-2x-x^2) is

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  19. The domain of the function sqrt(log(x^2-6x+6)) is

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  20. The domain of f (x) =(9log (x+3))/( x ^(2) + 3x +2) is

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