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For which Domain, the functions f(x) = 2...

For which Domain, the functions `f(x) = 2x^2-1` and `g(x)=1-3x` are equal to

A

{ 0,2}

B

`{(1)/(2) , -2}`

C

`{-(1)/(2) , 2}`

D

`{(1)/(2), 2}`

Text Solution

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The correct Answer is:
B
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DISHA PUBLICATION-RELATIONS AND FUNCTIONS -EXERCISE - 1
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  2. Which of the following relation is a function ?

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  3. For which Domain, the functions f(x) = 2x^2-1 and g(x)=1-3x are equal ...

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  4. The domain of the function f(x) = (1)/(sqrt(9 - x^(2))) is

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  5. There are three relations R(1) , R(2) and R(3) such that R(1) = {(2,...

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  6. The domain of definiton of the function f(x)=(1)/(sqrt(x^(12)-x^(9)+x^...

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  7. The domain and range of the real function f defined by f(x)=(4-x)/(x-4...

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  8. Let N be the set of natural numbers and the relation R be defined on ...

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  9. The domain of the function f(x) = (x^(2) + 3x+ 5)/(x^(2) -5x + 4) is

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  10. The domain of the function f given by f(x) = (x^(2)+ 2x+ 1)/(x^(2) - 5...

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  11. Find the domain of f(x)=sqrt((log)(0. 4)((x-1)/(x+5)))

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  12. If f(x)=(x)/(x-1), then what is (f(a))/(f(a+1)) equal to?

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  13. If phi(x)=a^x, then [phi(p)]^3 is equal to:

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  14. The function f(x)=log(x+sqrt(x^(1)+1)) is

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  15. The domain of the function f(x) = (|x+3|)/(x + 3) is

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  16. If 3 f(x) - f((1)/(x) ) = log x^(4) , then f(e^(-x)) is

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  17. If f(x) = x^(3) - (1)/(x^(3)) then f (x) + f((1)/(x)) is equal to

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  18. Is g={(1,1),(2,3),(3,5,),(4,7)} a function? If this is described by th...

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  19. If f(y) = 2y^(2) + by + c and f(0) = 3 and f(2) = 1, then the value of...

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  20. The domain of definition of the function y=(1)/(log(10)(1-x))+sqrt(x...

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