UPSC NDA 2 2017 Mathematics Solved Paper

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Question : 8 of 120

Marks: +1, -0

If α and β are the roots of the equation 1+x+x2=0, then the matrix product [

1	β
α	α

][

α	β
1	β

] is equal to

[NDA II 2017]

[
1 1 ‌
1 2
]
[
−1 −1 ‌
−1 2
]
[
1 −1 ‌
−1 2
]
[
−1 −1 ‌
−1 −2
]

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