50,Ifa is a root of 25 cos2 θ + 5 cos θ-12-0,<α<π,then sin 2α is – InterviewSolution

1.	50,Ifa is a root of 25 cos2 θ + 5 cos θ-12-0,<α<π,then sin 2α is equal toAIEEE 20021
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