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Which one of the following graphs repres...

Which one of the following graphs represents the function of x? why?

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The correct Answer is:
(a) Because in (b) at some x, there are many values of y
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MODERN PUBLICATION-RELATIONS AND FUNCTIONS-Objective Type Questions (D. Very Short Answer Types Questions)
  1. Give an example of a relation which is transitive but neither refle...

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  2. Let R be the relation ''greater than'' from A={1,4,5} to B={1,2,4,5,6,...

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  3. Which one of the following graphs represents the function of x? why?

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  4. Show that f(x)=3x+5 for all xinQ, is one-one.

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  5. Show that the function f: N->N , given by f(x)=2x , is one-one but not...

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  6. If f is a function from RrarrR such that f(x)=x^(2)AA x inR, then show...

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  7. Let A = {1, 2, 3}, B = {4, 5, 6, 7}and let f = {(1, 4), (2, 5), (3, 6)...

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  8. The function P is defined as: ''To each person on the earth is assig...

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  9. Write the function whose graph is shown below:

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  10. Consider functions f and g such that composite gof is defined and i...

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  11. Are f and g both necessarily onto, if gofis onto?

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  12. Give examples of two functions f:" "N->Z" "a n dg:" "Z->Z such that o...

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  13. Give examples of function: f:NrarrN and g:NrarrN such that gof is ...

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  14. Find fog, if f:RrarrR and g:RrarrR are given by: f(x)=cosxandg(x)=x^...

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  15. If f (x) = sin x, g(x) = x^(2), if x inR, then find [(fog)(x)].

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  16. If f:RrarrR is defined by f(x)=3x+1, find f(f(x)).

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  17. Let '**' be a binary operation on N given by: a**b=LCM (a,b) for all...

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  18. Let '**' be a binary operation on N given by: a**b=LCM (a,b) for all...

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  19. The binary operation **:RxxRrarrR is defined as: a**b=2a+b. Find (...

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  20. Show that + : R xx R ->Rand xx : R xx R ->Rare commutative binary ope...

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