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Solve by finding a combinatorial argument

Discrete Mathematics Level 2

\( ^n C_0 + ^n C_1 + ^n C_2 + ^n C_3 + ... + ^n C_{n-1} + ^n C_n =? \)

\[ 1 \] \[ 2^{n-1} \] \[2^n \] \[ 2^{n+1} \]

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by Harshal Gajjar

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