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If [[x, y^3],[2,0]]=[[1,8],[2,0]] then [...

If `[[x, y^3],[2,0]]=[[1,8],[2,0]]` then `[[x,y],[2,0]]^-1=`

A

`[[0,-2],[-2,1]]`

B

`[[1,0],[0,1]]`

C

`[[0,-8],[-2,1]]`

D

` [[0,(1)/(2)],[(1)/(2),-(1)/(4)]]`

Text Solution

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The correct Answer is:
D
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HIMALAYA PUBLICATION-MATRICES AND DETERMINANTS-QUESTION BANK
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