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If A=[(9,1),(4,3)],B=[(1,5),(6,11)] and ...

If `A=[(9,1),(4,3)],B=[(1,5),(6,11)]` and `3A+5B+2X=0` then X =

A

`[(16,-14),(21,-32)]`

B

`[(16,14),(-21,-32)]`

C

`[(-16,-14),(-21,-32)]`

D

`[(-16,14),(21,32)]`

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-MATRICES -ALGEBRA OF MATRICES -EXERCISE - I
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  13. If A=[(3,0),(-4,-1)]B=[(3,5,-7),(0,-1,8)]C=[(6),(-1),(0)] then ABC=

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  14. If ((3,-2),(-1,2))((x),(y))=((11),(-5)), then 3x+7y=

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