Week 4: Friday
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Q1. (20)

Input a matrix of size 3x3. Check if it is symmetric.

Q2. (40)

Input two matrices of size 3x3. Add them and output the resultant matrix. The
matrix should be printed in the correct format.

Q3. (40)

Input two matrices of size 2x3.  Find the elements in the first row of the first
matrix that are present in the second row of the second matrix.

Example:
If first matrix is
1 2 3
4 5 6
and second matrix is
2 4 6
1 3 5
then the output is
1 3