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The function f(x)=2x^(3)-15x^(3)+36x+6 i...

The function `f(x)=2x^(3)-15x^(3)+36x+6` is increasing in the interval

A

`(-oo,2)cup(3,oo)`

B

`(-oo,2)`

C

`(-oo,2]cup[3,oo)`

D

`[3,oo)`

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Knowledge Check

  • The function f(x)=2x^(3)-15x^(2)+36x+1 is increasing in the interval

    A
    `x le 2" or "x ge 3`
    B
    `x lt 2" or "x gt3`
    C
    `x ge 2" or "x le 3`
    D
    `x gt 2" or "x lt 3`

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    `x gt -3" or "x lt 8`
    B
    `x lt -3" or "x gt 8`
    C
    `x gt 3" or "x lt -8`
    D
    `x lt 3" or "x gt -8`

  • f(x)=x^(3)-9x^(2)+36x+2 is increasing in

    A
    R
    B
    `phi`
    C
    `R^(-)`
    D
    `R^(+)`

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