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

Let `P=sum_(r=1)^50 (^(50+r)C_r(2r-1))/(^50C_r(50+r)),Q=sum_(r=0)^50(^50C_r)^2,R=sum_(r=0)^100(-1)^r(^100C_r)^2`

A

7th term

B

5th term

C

8th term

D

6th term

Text Solution

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The correct Answer is:
A
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RESONANCE-DPP-QUESTION
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  2. In the binomial expansion of (a-b)^nngeq5, the sum of the 5th and 6th ...

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  3. Let P=sum(r=1)^50 (^(50+r)Cr(2r-1))/(^50Cr(50+r)),Q=sum(r=0)^50(^50Cr)...

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  4. Let P = sum(r=1)^(50)(""^(50+r)C(r)(2r-1))/(""^(50)C(r)(50+r)), Q = su...

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  5. Let P=sum(r=1)^50 (^(50+r)Cr(2r-1))/(^50Cr(50+r)),Q=sum(r=0)^50(^50Cr)...

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  9. If sum(r=0)^(2n) a(r)(x-1)^(r) = sum(r=0)^(2n) b(r)(x-2)^(r) and b(r) ...

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  10. p is a prime number and n<p<2ndot If N=^(2n)Cn , then p dividesN b. p...

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  12. the continued product 2.6.10.14.... to n factors is equal to ^2n pn ...

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  13. The solution of |x^2+3x|+x^2-2>=0 is

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  14. Which of the following equations have no real solutions ?

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  15. The solution set satisfying the inequality,sqrt(21-4a-a^2)/(a+1)<=1

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  16. The co-efficient of x in the expansion of (1-x+2x^2)^11 is

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  17. If (1+x)^(n) = c(0) + C(1)x+C(2)x^(2)+"….."+X(n)x^(n), m ge 2 C(0) -...

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  19. Solve the following |(x^2+2x+2)+(3x+7)|<|x^2+2x+2|+|3x+7|

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  20. |x^(2) -1|+|x^(2) - 4|le 3

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