$--)$ Question $3\mathrm{.}2$:

Let$$s consider this matrix as a vector of vectors.

Add $3$ to the element vector $($of the matrix$)$ at the index $=1.$ The addition is performed element$-$wise

along Axis $1.$

Display the matrix with all its scalar elements after the operation has been done in the format of a $2$Dmatrix.

$--)$ Question $3\mathrm{.}3$:

Continuing from Question $3\mathrm{.}2,$ i$.$e$.,$ after the above addition of $3$ has been done:

Flatten the matrix and display the result.

SUBMISSION REQUIREMENT PART III #$1$:

Provide solutions to the above questions.