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Let P=sum(r=1)^(50)(^(50+r)Cr(2r-1))/(^(...

Let `P=sum_(r=1)^(50)(`^(50+r)C_r(2r-1))/(`^(50)C_r(50+r)), Q=sum_(r=1)^(50)(`^50C_r)^2, R=sum_(r=0)^(100)(-1)^r(`^(100)C_r)^2`
Answer the following question based on above passage:
The value of P-Q is equal to

A

1

B

-1

C

`2^50`

D

`2^100`

Text Solution

Verified by Experts

The correct Answer is:
B
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PATHFINDER-BINOMIAL THEOREM-QUESTION BANK
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