2.2.44 Derivatives and differentials
condition: Find the derivatives of the functions: 1) \( y=\left(1-x^{3}\right) \operatorname{arccot}(3 x) \), 2) \( y=\cos \left((3 x+4)^{3-x}\right) \).
Calculation of derivatives and differentials of first and higher orders of functions of one and many variables, including partial derivatives.