Maharashtra State BoardHSC Commerce 11th
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If f(x) = {4x-2, x≤-35, -3<x<3x2, x≥3,the find f(– 4) - Mathematics and Statistics

Sum

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

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Solution

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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