State the key points about: Solving Modulus Inequalities
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Answer
• Modulus inequalities can be solved algebraically or graphically.
• For ∣X∣<a, the solution is −a<X<a.
• For ∣X∣>a, the solution is X<−a or X>a.
• Squaring both sides is an option for inequalities with modulus on both sides, but be careful with the direction of the inequality sign.
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Solving modulus inequalities
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