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Mathematics
A binary sequence is an array of $0's $ and $1's$. The number of n-digit binary sequences which contain even number of $0's$ is:
\[\begin {array} {1 1} (1)\;2^{n-1} & \quad (2)\;2^n-1 \\ (3)\;2^{n-1}-1 & \quad (4)\;2^n \end {array}\]
jeemain
eamcet
math
2009
q6
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asked
Oct 8, 2013
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meena.p
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$(2)\;2^n-1$
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Nov 7, 2013
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pady_1
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