\text { PROBLEM TO ELABORATE - Determine the following integral! } \int(7 x-1) \cdot \cos (-x+4) d x \text { FOUR CHOICE QUESTION - The Riemann-integral of } f:[0,1] \rightarrow \mathbf{R} ; x \mapsto\left\{\begin{array}{ll}

x \ln x, & \text { if } x>0, \\

1, & \text { if } x=0

\end{array}\right.