If

 x = [1 2 4; 3 4 5; 5 6 7]

then y should be the sum of the diagonals of the matrix

 y = 1 + 4 + 7 = 12
Solve

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Last Solution submitted on Jul 23, 2026

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ANAS Abdullah Al Kafi S. M Fahmid Hussain adil ahnaf

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