If A = [(1,2,3),(3,2,1)] and B = [(3,2,1...

If `A = [(1,2,3),(3,2,1)]` and `B = [(3,2,1),(1,2,3)]`, find `3B - 2A`.

Text Solution

Verified by Experts

The correct Answer is:

`[(7,2,-3),(-3,2,7)]`

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IF A=[{:(1,2,3),(3,2,1):}],andB=[{:(3,2,1),(1,2,3):}] find 3B-2A.

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

Knowledge Check

I: If A=[(0,1,2),(2,3,4),(4,5,-6)],B=[(-1,2,3),(0,1,0),(0,0,-1)] then 4A-5B=[(5,-6,-7),(8,7,16),(16,20,-19)] II:If A=[(1,2,3),(3,2,1)]B=[(3,2,1),(1,2,3)] then 3B-2A=[(7,2,-3),(-3,2,7)]

A

only I is true

B

only Ii is true

C

both I and II are true

D

neither I nor II true

If A-2B=[(1,2),(3,0)] and 2A-3B=[(-3,3),(1,-1)] then B=

A

`[(-5,7),(-5,1)]`

B

`[(5,7),(-5,1)]`

C

`[(-5,-1),(-5,-1)]`

D

`[(-5,-7),(-5,1)]`

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