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The function f(x) < 0 when -2 < x < 1. Which of the following is true about the function |f(x) | ?

 

a) |f(x) | = - f(x) when -1 < x < 2

 

b) |f(x) | = f(x) when -1 < x < 2

 

c) |f(x) | = - f(x) when -2 < x < 1

 

d) |f(x) | = f(x) when -2 < x < 1

 Jan 24, 2022
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 Jan 24, 2022

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