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Let A=[(3,-5),(7,-12)] and B=[(12,-5),(7...

Let `A=[(3,-5),(7,-12)] and B=[(12,-5),(7,-3)]` bc two given matrices, then `(AB)^(-1)` is :

A

`[(1,0),(0,-1)]`

B

`[(1,0),(0,1)]`

C

`[(-1,0),(0,1)]`

D

`[(0,1),(1,0)]`

Text Solution

Verified by Experts

The correct Answer is:
B
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(5)/(7)+(-12)/(5)=-(12)/(5)+(5)/(7)