Consider the following functions :

1. f(x) = { 1/x , if x ≠ 0 ; 0 , if x = 0 }

2. f(x) = { 2x + 5 , if x > 0 ; x² + 2x + 5 , if x ≤ 0 }

Which of the above functions is/are derivable at x = 0 ?

Mathematics 2015 NDA Mathematics 2015 NDA 2015

Options