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[" 60."11cos A+cos^(2)A=1" ,then the val...

[" 60."11cos A+cos^(2)A=1" ,then the value of "sin^(2)A+sin^(4)A" is "],[[" (1) "1," (2) "(1)/(2)," ."(3)2," (4) "3]]

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