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Consider the equation x^4+4x^3-8x^2+K=0....

Consider the equation `x^4+4x^3-8x^2+K=0`. Answer the following (1) The above equation has all imaginary roots then the range of k is (2)The above equation has 3-distinct real roots if the range of k is (3) the above equation has 2 real roots and 2 imaginary roots if the range of k is

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The correct Answer is:
`k in [0,3]`
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