Cho \(f\left( x \right) = {x^3} - 2{x^2} + 5,\) tí...

Câu hỏi: Cho \(f\left( x \right) = {x^3} - 2{x^2} + 5,\) tính \(f''\left( 1 \right).\)

A \(f''\left( 1 \right) =  - 3.\)

B \(f''\left( 1 \right) = 2.\)

C \(f''\left( 1 \right) = 4.\) 

D \(f''\left( 1 \right) =  - 1.\)