Function domains and inequalities

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Reference no: EM13118322

1) Find the domain of the function

f(x) = 2/(x^5) + 3x^4 - 3

2) Solve the inequality

x^4 - 13x^3 + 42x^2 <= 0

3) Solve the inequality

x^4 - 10x^3 + 36x^2 - 54x + 27 < 0

Reference no: EM13118322

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