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U= {1, 2, 3, 4} and relation R = {(x,y):...

U= {1, 2, 3, 4} and relation `R = {(x,y): y gt x, x, y in U}` then range of R is …….

A

{1, 2, 3,4}

B

{2,3,4}

C

{4}

D

`phi`

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B
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KUMAR PRAKASHAN-RELATIONS AND FUNCTIONS-Textbook based MCQs
  1. n(A)= m, n (B) = n. The total number of non empty relation from A to B...

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  2. U= {1, 2, 3, 4} and relation R = {(x,y): y gt x, x, y in U} then range...

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  3. Out of the following which is not function?

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  4. Out of the following which is a function?

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  5. If f: R rarr R, f(x)= (4^(x))/(4^(x) + 2) then,

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  6. Domain of the function defined by f(x)= sqrt(4x-x^(2)) is……

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  7. Domain of the function defined by f(x)= sqrt(5|x|)=x^(2)-6 is…….

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  8. Range of f(x)= (x^(2)-x)/(x^(2)+ 2x) is …….

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  9. Range of the function f(x)= (x^(2) + x + 2)/(x^(2) + x + 1) is……

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  10. f(x)= bx^(2) + cx and d and f(x+ 1) - f(x)= 8x + 3 then…….

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  11. f(x)= 2x^(n) + a. If f(2)= 26 and f(4)= 138 then the value of f(3) is…...

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  12. Domain of the function defined by f(x)= sqrt(x-1) + sqrt(3-x) is…..

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  13. Range of the function f(x)= (x+2)/(|x+2|), x ne -2 is……

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  14. If 2f (x)- 3f((1)/(x))= x^(2) (x ne 0) then f(2)= ……

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  15. The graph of an identity function I(R ): R rarr R is………

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  16. Range of the function f: R rarr R, f(x)= x^(2) is………

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  17. If f: R rarr R, f(x)= x-2, g: R rarr R, g(x)= x + 2 then (f+ g) (x)= …...

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  18. f(x)= x, g(x)= (1)/(x) and h(x)= f(x) g(x). If h(x) = 1 then…….

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  19. If f(x)= (x-3)/(x + 1) then f[f {f(x)}]= …….

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  20. If f(x)= 64 x^(3) + (1)/(x^(3)) and alpha and beta are roots of the e...

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