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Home  >>  EAMCET  >>  Mathematics
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The period of $\sin ^4 x+\cos ^4x $ is :

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