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f(x)=|[2cos^(4)x,2sin^(4)x,3+sin^(2)2x],...

`f(x)=|[2cos^(4)x,2sin^(4)x,3+sin^(2)2x],[3+2cos^(4)x,2sin^(4)x,sin^(2)2x],[2cos^(4)x,3+2sin^(4)x,sin^(2)2x]|` ,then `(1)/(5)f'(0)=` is equal to :

A

6

B

1

C

0

D

2

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If /_\ = |[5+sin^(2)x,cos^(2)x,4sin2x],[sin^(2)x,5+cos^(2)x,4sin2x],[sin^(2)x,cos^(2)x,5+4sin2x]| =

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If f(x)=(cos^(2)x+sin^(4)x)/(sin^(2)x+cos^(4)x) for x in R then f(2016)=

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