Author : Akash Kumar Singh
December 28, 2024
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Explanation:
(a)
𝑓(𝑥) = 𝑥 |𝑥|
Case I : If x ≥ 0, |x| = + x ∴ f(x) = x/x = 1
Case II : if x < 0, |x| = − x ∴ f(x) = x/−x = −1
∴ Solution set will be {1,−1}.
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