Cho \(g\left( x \right) = {x^2}\sin \left( {x - 2} \right)\). Tính
A. -2 | B. 4 | C. 2 | D. 1 |
\(g'\left( x \right) = 2x\sin \left( {x - 2} \right) + {x^2}.\cos \left( {x - 2} \right)\)
Suy ra:
\(g'\left( 2 \right) = 2.2.\sin \left( {2 - 2} \right) + {2^2}\cos \left( {2 - 2} \right) = 4\)
-- Mod Toán 11
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