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IB Maths AA HL 2.15 Inequalities between functions Question Bank

Practise IB Mathematics HL 2.15 by applying inequalities between functions methods to exam-style questions.

Syllabus
First assessment 2021
Course
Mathematics: analysis and approaches HL
Level
HL

Exam points

  • identify the mathematical structure, variable or representation
  • select and apply the correct theorem, formula or algorithm
  • check the result using units, domain, graph or logical reasoning

AHL 2.15 (HL)—Inequalities between functions question 1

[Maximum number: 3]

Let f(x)=x4+0.2x3−5.8x2−x+4,x∈Rf(x)=x^{4}+0.2 x^{3}-5.8 x^{2}-x+4, x \in \mathbb{R}.

Find the solutions of f(x)>0.

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