

MCQOPTIONS
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1. |
If \[\sin A,\sin B,\cos A\] are in G.P., then roots of \[{{x}^{2}}+2x\cot B+1=0\] are always [Orissa JEE 2005] |
A. | Real |
B. | Imaginary |
C. | Greater than 1 |
D. | Equal |
Answer» B. Imaginary | |