Đạo hàm của hàm số \(y = {\tan ^2}x - {\cot ^2}x\) là:
A.\(y' = 2\frac{{\tan x}}{{{{\cos }^2}x}} + 2\frac{{\cot x}}{{{{\sin }^2}x}}\)
B.\(y' = 2\frac{{\tan x}}{{{{\cos }^2}x}} - 2\frac{{\cot x}}{{{{\sin }^2}x}}\)
C.\(y' = 2\frac{{\tan x}}{{{{\sin }^2}x}} + 2\frac{{\cot x}}{{{{\cos }^2}x}}\)
D.\(y' = 2\tan x - 2\cot x\)
A.\(y' = 2\frac{{\tan x}}{{{{\cos }^2}x}} + 2\frac{{\cot x}}{{{{\sin }^2}x}}\)
B.\(y' = 2\frac{{\tan x}}{{{{\cos }^2}x}} - 2\frac{{\cot x}}{{{{\sin }^2}x}}\)
C.\(y' = 2\frac{{\tan x}}{{{{\sin }^2}x}} + 2\frac{{\cot x}}{{{{\cos }^2}x}}\)
D.\(y' = 2\tan x - 2\cot x\)
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Hóa Học lớp 12
