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Solve the equation x^(3)-3x-a=0 for diff...

Solve the equation `x^(3)-3x-a=0` for different values of `a`

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We have `x^(3)-3x-a=0impliesx^(3)-3x=a`
Let `f(x)=x^(3)-3x` and `g(x)=a `
`:'f'(x)=0`
`implies3x^(2)-3=0`
`impliesx=-1,1` ltbr `f''(x)=6x`
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