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Q5: If 12 3 A = 10 -5 17 1 B,-14 -1] 2 -2] then the element in the third row and second column of (2A)2 + A is C. 29 D_-6 E.
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Answer #1

Sol: Given (23-1 To-52 17 12) 4 A=4CAXA) 23-1/23-1 n = 9(AXA = 4lo-52 0.52 7 LVL 11 1440-14 21-5-2 (2A) + A Moto-7 6-15- 2 +(2317 (Y P ㅗ / L 51-2 ло (i-2 multiply direct Andicated row and Column (24) 7A = -7 (237 - tlo52 7 0-2) add directly indicate

Sol Given As (23-] ro123-1 alo-52 10.52 L 7 12L72) 4+0-7 0 +0+14 Moto-14 6-15-1 0+25+2 21-5-2 -2 +6+2 L 0-10-4 -7+2+4) c T -3 T 14 0 -10 6 12 40 24 27 -141=1 66 los 50 14 - La 56 -0 (2A) + A 1-12 -40 247 g 3 -17 1 56 los solto _52 Lo 56 -u) L 7 1-2] = F 12+2 -40+3 24-17 56 to 108-5 -56+2 Lot7 56+1 -4.2) R-10 -37 237 56 103 -54 17 57 -6] element in the third row and second Column is 57 . the

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