Level:
Project ID:
2010002004
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Differentiate the following function.
\[
f(x) =\cos x(1 -\mathop{\mathrm{cotg}}\nolimits x)
\]
\(f'(x) =-\sin x +\cos x + \frac{\cos x}
{\sin ^{2}x},\ x\in \mathbb{R}\setminus\{k\pi; k\in \mathbb{Z}\}\)
\(f'(x) = \frac{\cos x}
{\sin ^{2}x},\ x\in \mathbb{R}\setminus\{k\pi; k\in \mathbb{Z}\}\)
\(f'(x) =-\sin x +\cos x,\ x\in \mathbb{R}\setminus\{k\pi; k\in \mathbb{Z}\}\)
\(f'(x) =-\sin x +2\cos x,\ x\in \mathbb{R}\setminus\{k\pi; k\in \mathbb{Z}\}\)