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प्रश्न
If the function f is defined by f(x) = `{{:(x + 2";", x > 1),(2";", -1 ≤ x ≤ 1),(x - 1";", -3 < x < -1):}` find the value of f(− 1.5)
उत्तर
f(x) = x + 2 when x = {2, 3, 4, ……}
f(x) = 2
f(x) = x – 1 when x = {– 2}
f(x) = x – 1
f(– 1.5) = – 1.5 – 1
= – 2.5
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