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Questions  >>  EAMCET  >>  Mathematics
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If $\cos \theta-4 \sin \theta=1$ then $\sin \theta+4 \cos \theta$ is equal to :

\[\begin {array} {1 1} (a)\;\pm 1 & \quad (b)\;0 \\ (c)\;\pm 2 & \quad (d)\;\pm 4 \end {array}\]

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