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प्रश्न
if A =`((5,a),(b,0))` is symmetric matrix show that a = b
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उत्तर
A = `((5,a),(b,0))` given A is symmetric matrix
`A = A^T`
`[(5,a),(b,0)] = [(5,a),(b,0)]^T = [(5,b),(a,0)]`
`:. a = b`
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