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[" Q.14The solution of the equation "cos...

[" Q.14The solution of the equation "cos^(2)theta+sin theta+1=0" lies in the interval "],[[" (A) "(-(pi)/(4),(pi)/(4))," (B) "((pi)/(4),(3 pi)/(4))," (C) "((3 pi)/(4),(5 pi)/(4))," (D) "((5 pi)/(4),(7 pi)/(4))]]

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