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Statement-1: sum(r =0)^(n) (r +1)""^(n)...

Statement-1: ` sum_(r =0)^(n) (r +1)""^(n)C_(r) = (n +2) 2^(n-1)`
Statement -2: ` sum_(r =0)^(n) (r+1) ""^(n)C_(r) x^(r) = (1 + x)^(n) + nx (1 + x)^(n-1)`

A

Statement 1 is false, statement 2 is true

B

Statement 1 is true, statement 2 is true, Statement 2 is a correct explanation of

C

Statement 1 is true, statement 2 is true, Statement 2 is not a correct explanation of Statement 1

D

Statement 1 is true, statement 2 is false

Text Solution

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The correct Answer is:
B
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