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Multiplicative inverse of the matrix [[2...

Multiplicative inverse of the matrix `[[2,1],[7,4]]` is (i) `[[4,-1],[-7,-2]]` (ii) `[[-4,-1],[7,-2]]` (iii) `[[4,-1],[7,2]]` (iv) `[[4,-1],[-7,2]]`

A

`[(4,-1),(-7,-2)]`

B

`[(-4,-1),(7,-2)]`

C

`[(4,-7),(7,2)]`

D

`[(4,-1),(-7,2)]`

Text Solution

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The correct Answer is:
D
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