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[" 22.If "a in(-1,1)," then roots of the...

[" 22.If "a in(-1,1)," then roots of the quadratic equation "(a-1)x^(2)+ax+sqrt(1-a^(2))=0" are "],[[" (A)Real "," (B)Imaginary "," (C) Both equal "," (D) None of these "]]

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