\(y = \tan x - 2{x^3}\)
A.\(y' =- \dfrac{1}{{{{\cos }^2}x}} - 6{x^2}\)
B.\(y' =- \dfrac{1}{{{{\cos }^2}x}} + 6{x^2}\)
C.\(y' = \dfrac{1}{{{{\cos }^2}x}} - 6{x^2}\)
D.\(y' = \dfrac{1}{{{{\cos }^2}x}} + 6{x^2}\)
A.\(y' =- \dfrac{1}{{{{\cos }^2}x}} - 6{x^2}\)
B.\(y' =- \dfrac{1}{{{{\cos }^2}x}} + 6{x^2}\)
C.\(y' = \dfrac{1}{{{{\cos }^2}x}} - 6{x^2}\)
D.\(y' = \dfrac{1}{{{{\cos }^2}x}} + 6{x^2}\)
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Hóa Học lớp 12
