Crey | Let function R → R is defined as f(x) = 2x³ – 1, then ‘f’ is 2x³ + 1, (2x)³ + 1, (1 – 2x)³, [(1+x)/2]¹/³

Question

Let function R → R is defined as f(x) = 2x³ – 1, then ‘f’ is

Options :

2x³ + 1
(2x)³ + 1
(1 – 2x)³
[(1+x)/2]¹/³

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