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Let f : R rarr R be defined by f(x)=2 x...

Let `f : R rarr R` be defined by `f(x)=2 x+|x|` then `f(2 x)+f(-x)-f(x)=`

A

a. 2x

B

b.`2|x|`

C

c.-2 x

D

d.`-2|x|`

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The correct Answer is:
B
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