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प्रश्न
if f(x) = `{(4x - 2"," x ≤ - 3),(5"," -3 < x < 3),(x^2"," x ≥ 3):},`the find f(– 4)
उत्तर
f(x) = 4x – 2, x ≤ – 3
= 5 , –3 < x < 3
= x2 , x ≥3
f(– 4) = 4(– 4) – 2
= – 16 – 2
= –18
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