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Home  >>  EAMCET  >>  Mathematics
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$f(x)=\begin {vmatrix} 2 \cos x & 1 & 0 \\ x-\frac{\pi}{2} & 2 \cos x & 1 \\ 0 & 1 & 2 \cos x \end {vmatrix}=>f'(\pi)=$

\[\begin {array} {1 1} (1)\;0 & \quad (2)\;2 \\ (3)\;\frac{\pi}{2} & \quad (4)\;\pi-6 \end {array}\]
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$ (2)\;2$
answered Nov 7, 2013 by pady_1
 

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