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

If `[{:(9, -1, 4),(-2, 1, 3):}] = A + [{:( 1,2,-1),(0,4,9):}],` then the matrix A is :

A

`[{:( 8, -3, 5),( -2, -3 ,-6):}]`

B

`[{:(-8, 3, -5),(2,3,6):}]`

C

`[{:(10, 1, 3),(-2, 5,12):}]`

D

Does not exist

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EDUCART PUBLICATION-SAMPLE PAPER (SELF-ASSESSMENT) -10-SECTION - B
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  2. If the tangent to the curve y = 2x ^(2) + 4x + 9 at origin is prallel ...

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  3. The value of sin ^(-1) (sin 1550^(@)) is :

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  4. The differential, coefficient of sec (tan ^(-1) x ) is

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  5. The function f (x) = 4x ^(3) - 18x ^(2) + 27 x + 49 is increasing in...

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  6. Let R be a relation on a set A = {1,2,3,4,5} defined as R = { (a,b) :...

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  7. If the elements of a 2 xx 2 matrix A are given as a (i,j) = {{:(1",",...

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  8. The angle of intersection of the curves xy = a ^(2) and x ^(2) - y ^(2...

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  9. The values of a for which the finction f (x) = sin x - ax + 3 strictly...

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  10. For the functioin y = sqrt (sin x + sqrt ( sin x + sqrt (sin x + ......

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  11. Find AB if A = [{:( 2,1,3),( 2, 9, 2 ),( 7, 4 , 3):}] and B = [{:( 1, ...

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  12. If A = [{:( 2 , lamda, - 3),( 0,2, 5),(1,1,3):}], then inverse of matr...

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  13. Classify the following functions f(x) defined in R to R as injective ,...

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  14. The maximum value of the function f (x) =- 2x ^(2) + 8x + 15 is :

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  15. If |{:( 2x, x + 3),(2 (x +1), x +1):}| = |{:(3,3),( 1, 5):}|, then the...

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  16. For any square matrix of order 2, if A (adj A) = [{:(8, 0),( 0,8):}], ...

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  17. If x=2 cos theta- cos 2 theta and y=2 sin theta - sin 2 theta, then (d...

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  18. If the volume of a box is given as V (x) = (1)/(4) (a ^(2) x - x ^(3))...

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  19. If [{:(9, -1, 4),(-2, 1, 3):}] = A + [{:( 1,2,-1),(0,4,9):}], then t...

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  20. Find the equation of the tangent to the curve (1+x^2)y=2-x , where it ...

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