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महाराष्ट्र राज्य शिक्षण मंडळएचएससी वाणिज्य (इंग्रजी माध्यम) इयत्ता १२ वी

Find Cofactors of the Elements of the Matrix a = − 1 2 − 3 4 - Mathematics and Statistics

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प्रश्न

Find cofactors of the elements of the matrix A = `[[-1,2],[-3,4]]`

बेरीज

उत्तर

Given A = `[[-1,2],[-3,4]]` 

Cofactor of (−1) is 4
Cofactor of (2) is 3
Cofactor of (−3) is −2
Cofactor of (4) is −1
∴ A = `[(4,3),(-2,-1)]`
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2017-2018 (March)

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