A. \(\frac{{3{{\sin }^2}\left( {2x + 1} \right)}}{{2\sqrt {{{\sin }^3}\left( {2x + 1} \right)} }}\)
B. \(3\sqrt {\sin \left( {2x + 1} \right)} .c{\rm{os}}\left( {2x + 1} \right)\)
C. \(\frac{{3{{\sin }^2}2\left( {2x + 1} \right)}}{{2\sqrt {{{\sin }^3}\left( {2x + 1} \right)} }}\)
D. \(3\sqrt {\sin \left( {2x + 1} \right)} \)
B
\(y' = \frac{1}{{2\sqrt {{{\sin }^3}\left( {2x + 1} \right)} }}\left( {{{\sin }^3}\left( {2x + 1} \right)} \right)' = \frac{{2.3{{\sin }^2}\left( {2x + 1} \right).\cos \left( {2x + 1} \right)}}{{2\sqrt {{{\sin }^3}\left( {2x + 1} \right)} }} = 3\sqrt {\sin \left( {2x + 1} \right)} .\cos \left( {2x + 1} \right)\)
Câu hỏi trên thuộc đề trắc nghiệm dưới đây !
Copyright © 2021 HOCTAP247