# 7. In a magic square each row, column and diagonal have the same sum. Check if the following is a magic square.                (i)    5 -1 -4 -5 -2 7 0 3 -3

H Harsh Kankaria

Taking Rows-

$5-1-4 = 0$

$-5-2+7 = 0$

$0+3-3 = 0$

Taking Columns-

$5-5+0 = 0$

$-1-1+3 = 0$

$-4+7-3 = 0$

Taking Diagonals-

$-4-2+0 = -6$

$5-2-3 = 0$

As the sum of one of the diagonals is not equal to 0, it is not a magic square.

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