If A= ; then for all , det(A) lies in the interval |
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If A= ; then for all , det(A) lies in the interval |
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(b) |
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(c) |
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(d) |
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|A|=
= 2(1+sin2 )
⇒ < sin <
⇒ 0 ≤ sin2 <
∴ |A| [2,3)