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1/(n!)+1/(2!(n-2)!)+1/(4!(n-4)!)+ …… is ...

`1/(n!)+1/(2!(n-2)!)+1/(4!(n-4)!)+ ……` is equal to

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CENGAGE PUBLICATION-BINOMIAL THEOREM-All Questions
  1. Prove that (.^(2n)C0)^2-(.^(2n)C1)^2+(.^(2n)C2)^2-..+(.^(2n)C(2n))^2 =...

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  2. The largest term in the expansion of (3+2x)^50, where x=1/5, is

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  3. 1/(n!)+1/(2!(n-2)!)+1/(4!(n-4)!)+ …… is equal to

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

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  5. If x=1//3, find the greatest tem in the expansion of (1+4x)^8dot

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  6. If the sum of coefficients in the expansion of (x-2y+3z)^n is 128, the...

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  7. Find the sum of the coefficients in the expansion of (1+2x+3x^2+ n x^n...

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  8. The number of terms in the expansion of (1+x)^(101) (1+x^2-x)^(100) in...

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  9. Find the sum of coefficients in (1+x-3x^2)^(4163)dot

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  10. Find the middle term in the expansion of (x^2+1/(x^2)+2)^ndot

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  11. In the expansion of (1+x)^(50), find the sum of coefficients of odd po...

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  12. If (1+x-2x^2)^6=1+a1x+a2x^2+……+a(12)x^12 then

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  13. If the middle term in the binomial expansion of (1/x+xsinx)^(10) is eq...

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  14. Find the sum C0+3C1+3^2C2+...+3^n Cndot

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  15. If (1+x)^n=sum(r=0)^n Cr x^r , then prove that C1+2C2+3C3+....+n Cn=n2...

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  16. If T0,T1, T2, ,Tn represent the terms in the expansion of (x+a)^n , t...

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  17. If (1+x+x^2)^n=a0+a1x+a2x^2++a(2n)x^(2n), find the value of a0+a3+a6+...

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  18. Find the sum C0-C2+C4-C6+ ......... ,where Cr=^n Cr .

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  19. Prove that .^n C0+^n C3+^n C6+=1/3(2^n+2cos((npi)/3)) .

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  20. Given that the 4^(th) term in the expansion of (2+3/(8)x)^(10) has the...

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