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If [(9,-1,4),(-2,1,3)]=A+[(1,2,-1),(0,4,...

If `[(9,-1,4),(-2,1,3)]=A+[(1,2,-1),(0,4,9)],` then find the matrix `A.`

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XII BOARDS PREVIOUS YEAR-BOARD PAPER SOLUTIONS-All Questions
  1. Let A=R-{3} and B=R-[1]dot Consider the function f: AvecB defined by f...

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  2. Show that the height of a closed right circular cylinder of given s...

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  3. If [(9,-1,4),(-2,1,3)]=A+[(1,2,-1),(0,4,9)], then find the matrix A.

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  4. If |(x+1,x-1),(x-3,x+2)|=|(4,-1),(1,3)|, then write the value of x .

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  5. If vec a=x hat i+2 hat j-\ z hat k and vec b=3 hat i-\ y hat j+ hat ...

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  6. Write the degree of the differential equation x^3((d^2y)/(dx^2))^2+x\ ...

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  7. Prove the following: tan^(-1)x+tan^(-1)((2x)/(1-x^2))=tan^(-1)((3x-x^3...

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  8. Find the value of a if [(a-b,2a+c),(2a-b,c+d)]=[(-1,5),(0,13)]

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  9. Prove the following: "cos"{tan^(-1){sin(cot^(-1)x)}}= sqrt((1+x^2)/(...

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  10. Find the Cartesian equation of the line which passes through the po...

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  11. If a unit vector vec a makes angles pi/3 with hat i ,pi/4 with hat ...

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  12. Find | vec x| , if for a unit vector vec a ,\ ( vec x- vec a)*( vec ...

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  13. Find the length of the perpendicular drawn from the origin to the p...

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  14. Find the vector equation of the plane passing through three points ...

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  15. Write the principal value of tan^(-1)sqrt(3)-cot^(-1)(-sqrt(3)) .

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  16. Write the value of tan^(-1)[2sin(2cos^(-1)(sqrt(3/2))] .

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  17. For what value of x is the matrix A=[(0,1,-2),(1,0,3),(x,3,0)] a skew-...

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  18. Using matrices, solve the following system of linear equations: x - ...

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  19. Write the differential equation representing the family of curves y...

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  20. If A(ij) is the cofactor of the element a(ij) of the determinant |(2,-...

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