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If sin^6 theta+sin^4 theta+cos^6 theta+c...

If `sin^6 theta+sin^4 theta+cos^6 theta+cos^4 theta` is written in the form `(a+b cos ctheta)/d` (where a,b,c,d `in` N, a,b,d are coprime numbers) then (a+b+c+d) is equal to

A

22

B

26

C

28

D

30

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