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[" When the determinant "|[cos2x,sin^(2)x,cos4x],[sin^(2)x,cos2x,cos^(2)x],[cos4x,cos^(2)x,cos2x]|" is "],[" expanded in powers of "sin x," then the constant term in that "],[" expression is "],[[" (1) "1," (2) "0," (3) "-1," (4) "2]]

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