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Find the value of a(23)+a(32) in the mat...

Find the value of `a_(23)+a_(32)` in the matrix
`A=[a_(ij)]_(3xx3)` where `a_(ij)={{:(|2i-j|,"if "igtj),(-i+2j+3,"if "iltj):}`

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To find the value of \( a_{23} + a_{32} \) in the matrix \( A = [a_{ij}]_{3 \times 3} \), we will use the given conditions for \( a_{ij} \): \[ a_{ij} = \begin{cases} |2i - j| & \text{if } i > j \\ - i + 2j + 3 & \text{if } i < j \end{cases} \] ### Step 1: Calculate \( a_{23} \) Since \( i = 2 \) and \( j = 3 \), we have \( i < j \). Therefore, we will use the second condition: \[ a_{23} = -2 + 2 \cdot 3 + 3 \] Calculating this: \[ a_{23} = -2 + 6 + 3 = 7 \] ### Step 2: Calculate \( a_{32} \) Now, for \( a_{32} \), we have \( i = 3 \) and \( j = 2 \). Here, \( i > j \), so we will use the first condition: \[ a_{32} = |2 \cdot 3 - 2| \] Calculating this: \[ a_{32} = |6 - 2| = |4| = 4 \] ### Step 3: Find \( a_{23} + a_{32} \) Now we can find the sum: \[ a_{23} + a_{32} = 7 + 4 = 11 \] Thus, the final answer is: \[ \boxed{11} \]
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CBSE COMPLEMENTARY MATERIAL-MATRICES AND DETERMINANTS-SIX MARK QUESTIONS
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  3. Using elementary tansformations, find the inverse of the matrix A=[(...

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  4. Using matrix method, solve the system of linear equations x-2y=10,2x...

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  5. Find A^(-1) if A=|(0,1,1),(1,0,1),(1,1,0)| and show that A^(-1)=(A^(2)...

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  9. If A+B+C=pi, then value of |{:(sin(A+B+C),sinB,cosC),(-sinB,0,tanA),(c...

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  10. |((x-2)^2,(x-1)^2,x^2),((x-1)^2,x^2,(x+1)^2),(x^2,(x+1)^2,(x+2)^2)|=-8...

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  11. Prove |[-bc, b^2+bc, c^2+bc] , [a^2+ac, -ac, c^2+ac] , [a^2+ab, b^2+ab...

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  12. Prove that: |(a,a+c,a-b),(b-c,b,b+a),(c+b,c-a,c)|=(a+b+c)(a^(2)+b^(2)+...

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  13. If a,b,c are positive and ar the p^(th),q^(th),r^(th) terms respective...

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  14. Prove that (x-2)(x-1) is factor of |(1,1,x),(beta+1,beta+1,beta+x),(3,...

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  15. Show that | (-a(b^2 + c^2 - a^2), 2b^3, 2c^3), (2a^3, -b(c^2 + a...

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  16. Determination the product [{:(,-4,4,4),(,-7,1,3),(,5,-3,-1):}] [{:(,1,...

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  17. If A=[1-1 1 2 1-3 1 1 1], find A^(-1) and hence solve the system of li...

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  18. Solve given system of equations by matrix method: (2)/(a)+(3)/(b)+(4...

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  19. To raise money for an orphanage, students of three schools A, B and C ...

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  21. If [(1,2,0),(-2,-1,-2),(0,-1,1)], find A^-1. Using A^-1, solve the sys...

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