Level:
Project ID:
1003230204
Accepted:
1
Clonable:
0
Easy:
0
Which of the statements A, B, C given bellow are correct?
\[
\begin{array}{l}
\text{A: }\left(\frac1{x^3}\cdot\cos x\right)' =-\frac{\cos x+\sin x}{x^4},\ x\in\mathbb{R}\setminus\{0\} \\
\text{B: }\bigl(\left(1-x^3\right)\cdot\ln x \bigr)'=-3x^2\ln x+\frac1x - x^2,\ x\in\mathbb{R}^+ \\
\text{C: } \left(5^x\cdot\sqrt[5]x\right)'=5^{x-1}\sqrt[5]x\left(5\ln5+\frac1x\right),\ x\in\mathbb{R}\setminus\{0\}
\end{array}
\]
The only correct statements are:
B, C
A, C
A, B
B
A
C