In answering the following questions, do not use the end keyword or the colon operator. The $2$D array cMat $=[[10,20]$ ; $[30,40]].$ Write logical arrays as $[$ true, false; false, true $].$ If there is no answer possible, enter: no answer.

$1)$

With linear indexing, what is the integer index array statement to display cMat$(1,1)$ and cMat$(2,2)$ as a column?