If \( \sin ^{2} x+\sin x=1 \) , then \( \cos ^{4} x+\cos ^{2} x= \)
\(\sin x = 1 - \sin^2 x = \cos^2 x\).
Then \(\cos^4 x + \cos^2 x = \sin^2 x + \sin x = 1\).
Answer: (B) 1
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