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Let the co-efficients of `x^n` In `(1+x)^(2n) and (1+x)^(2n-1)` be P & Qrespectively, then `((P+Q)/Q)^5=`

A

9

B

27

C

81

D

None of these

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A
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RESONANCE-DPP-QUESTION
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  2. Find the number of 4 digit positive integers if the product of their d...

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  3. Let the co-efficients of x^n In (1+x)^(2n) and (1+x)^(2n-1) be P & ...

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  4. number of distint terms in (x+a)^100+(x-a)^100

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  5. The value of m , for which the coefficients of the (2m+1) th terms in ...

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  6. STATEMENT - 1 : If n is even, .^(2n)C(1)+.^(2n)C(3)+.^(2n)C(5)+"….."+....

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  7. For some natural number N, the number of positive integral 'x' satis...

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  8. Find the sum of the last 30 coefficients in the expansion of (1+x)^(59...

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  9. Coefficient of x^(48) in sum(r=0)^(50)""^(50)C(r).(x-2)^(x).3^(50-r) i...

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  10. Solve the following equations : (i) |x-2| = sqrt(x-4) , (ii) (|x-2|)...

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  11. |x^(2)-4x+4|ge 1

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  12. Solve the following inequation (i) (3)/(x-2) lt 1 , (ii) (2x-1)/(x^(...

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  13. If sum(i=1)^(7) i^(2)x(i) = 1 and sum(i=1)^(7)(i+1)^(2) x(i) = 12 and ...

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  14. Circles with centres P,Q& S are touching each other externally as show...

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  15. The value of (P-Q) is equal to

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  16. The value of (P-R) is equal to

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  17. The value of (Q+R) is equal to

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  18. The sum sum(r=0)^(n) (r+1)C(r)^(2) is equal to :

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  19. In the binomial expansion of (a-b)^nngeq5, the sum of the 5th and 6th ...

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

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