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Let theta = (pi)/(5) and A =[{:(cos t...

Let ` theta = (pi)/(5) ` and `A =[{:(cos theta, sin theta),(-sin theta, cos theta):}]` . If B = A `+ A^(4)` , then det (B).

A

is one

B

lies in (2,3)

C

is zero

D

lies in (1,2)

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