What are the research areas of artificial intelligence?

the trace operation returns the sum of the diagonal elements of the matrix. Therefore, the traces of matrix A and its transposed matrix are equal.

Global gradient descent algorithm, stochastic gradient descent algorithm and batch gradient descent algorithm are all gradient descent algorithms. The following is wrong about its advantages and disadvantages.

As shown in the figure below, which of the following options are the eigenvalues of matrix A?

What are the characteristics of Python code? (Multiple Choice)