Tìm \(f'\left( 2 \right)\) nếu \(f\left( x \right) = {x^2}\sin \left( {x - 2} \right)\)
Ta có:
\(f'(x) = 2x\sin (x - 2) + {x^2}.\cos (x - 2)\)
Suy ra f′(2) = 4
-- Mod Toán 11