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Statement 1: Number of ways of selecting...

Statement 1: Number of ways of selecting 10 objects from 42 objects of which 21 objects are identical and remaining objects are distinct is `2^(20)dot` Statement 2: `^42 C_0+^(42)C_1+^(42)C_2++^(42)C_(21)=2^(41)dot`

Text Solution

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The correct Answer is:
`2^(20)`

Thus, total number ways of selection
`= .^(21)C_(0)+ .^(21)C_(1)+ .^(21)C_(2)+..+ .^(21)C_(10)=2^(20)`
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