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[" 27.The complex number "(sin x+i cos2x...

[" 27.The complex number "(sin x+i cos2x)" ,and "],[(cos x-i sin2x)" are conjugate to each otheritor "],[[" (c) "" Ch) "x" ) "x=n pi," (b) "x=0],[" (c) "x=(n+(1)/(2))pi," (d) No value of "x]]

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