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If the matrix A is such that [[1,-1],[2...

If the matrix A is such that ` [[1,-1],[2,3]]A=[[-4,1],[7,7]]`, find A.

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If the matrix A is such that [{:(1,-1),(2,3):}]A=[{:(-4,1),(7,7):}] then find A.

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USHA PUBLICATION-PREVIOUS YEAR QUESTION 2017-PREVIOUS YEAR QUESTION
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  2. Solve by Cramer’s rule 2x-y=2, 3x+y=13

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  3. If the matrix A is such that [[1,-1],[2,3]]A=[[-4,1],[7,7]], find A.

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  4. Find the inverse of the following matrix: [[0,0,2],[0,2,0],[2,0,0]]

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  5. If P(n-1,3):P(n+1,3)=5:12, find n.

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  13. Solve frac[dx][dy]=frac[3x-7y+7][3y-7x-3]

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  14. Prove the following by vector method. An angle inscribed in a semi-cir...

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  19. Show that: C1^2+2C2^2+3C3^2...+nCn^2=frac[(2n-1)!][{(n-1)!}^2

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  20. The probability that a student will pass the final examination in both...

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