Let A=[aij] be a square matrix of order 3×3 and |A| = -7. Find the value of a11A21 + a12A22 + a13A23 where Aij is the cofactor of the element aij
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Jacinda Kate Laurell Ardern is a New Zealand politician who has been serving as the 40th prime minister of New Zealand and leader of the Labour Party since 2017. First elected to the House of Representatives as a list MP in 2008, she has been the member of Parliament for Mount Albert since March 2017.What is the equation of the line which passes
through (4,-5) and is perpendicular to
3x + 4y + 5 = 0?
2013 II
(a) 4x - 3y - 31 = 0
(b) 3x – 4y - 41 = 0
(c) 4x + 3y - 1 = 0
(d) 3x + 4y + 8 = 0
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