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The domain of the function f(x)=(1)/(sqr...

The domain of the function `f(x)=(1)/(sqrt(|x|-x))` is :

A

`(-oo,oo)`

B

`(0,oo)`

C

`(-oo,0)`

D

`(-oo,oo)-{0}`

Text Solution

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The correct Answer is:
C
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  • The domain of the function f(x) = 1/sqrt[(x-6)(x-9)] is

    A
    `(-oo, 6] uu (9, oo)`
    B
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  • The domain of the function f(x)=sqrt((1-|x|)/(2-|x|)) is :

    A
    `(-oo,oo)-[-2,2]`
    B
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    D
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  • The domain of the function f(x)=sqrt(cos x) is

    A
    `[(3x)/(2),2pi]`
    B
    `[0, pi/2]`
    C
    `[(-pi)/(2), pi/2]`
    D
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