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Let A=[1-1 1 2 1-3 1 1 1]a n d10 B=[-4 ...

Let `A=[1-1 1 2 1-3 1 1 1]a n d10 B=[-4 2 2-5 0alpha1 2 3]dot` If `B` is the inverse of matrix `A ,` then `alpha=` 2 (b) `-2` (c) 5 (d) `-2`

A

-2

B

-1

C

2

D

5

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D
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-QUESTION BANK 2021-MATRICES
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  3. Let A=[1-1 1 2 1-3 1 1 1]a n d10 B=[-4 2 2-5 0alpha1 2 3]dot If B is...

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  7. Select and write the most appropriate answer from the given alternativ...

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  8. A = [(cos theta,-sin theta),(-sin theta,-cos theta)] then find A^(-1).

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  10. If A = [(3,1),(5,2)], and AB = BA = I, then find the matrix B.

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  12. If A = [(1,2),(3,-2),(-1,0)]and B = [(1,3,2),(4,-1,3)] then find the o...

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  13. If A+l=[(3,-2),(4,1)] then (A+l)(A-l) is equal to

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  14. If A = [(2,-1,1),(-2,3,-2),(-4,4,-3)] then find A^(2)

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  15. If A=[(-2,4),(-1,2)] then A^(2) is equal to

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  16. If A = [(0,3,3),(-3,0,-4),(-3,4,0)] and B = [(x),(y),(z)], find the ma...

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  17. If f(x) = x^(2) - 2x - 3 then find f(A) when A = [(1,2),(2,1)]

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  20. If A = [(6,5),(5,6)] and B = [(11,0),(0,11)] then find A'B'

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