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Show that the middle term in the (1+x)^2...

Show that the middle term in the `(1+x)^2n` expansion os is `(1.3.5.....(2n-1))/(n!)2^nx^n`

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  2. Find the value of 'a' if the 17^th term and 18^th term in the expansio...

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  3. Show that the middle term in the (1+x)^2n expansion os is (1.3.5.....(...

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  4. Find the coefficient of x^6y^3 in the expansion of (x+2y)^9

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  5. The second, 'third and fourth terms in the binomial expansion (x+a)^n ...

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  6. The coefficients of three consecutive terms in the expansion of. (1+a)...

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  7. Find the coefficient of x^5 in (x+3)^8.

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  8. Find the coefficient of a^5b^7 in the expansion of (a-2b)^12

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  9. Find the general term in the expansion of (x^2-y)^6.

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  10. Find the general term in the expansion of (x^2-yx)^12,x!=0

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  11. Find the 4th term in the expansion of (x-2y)^12

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  12. Find the 13^th term in the expansion of (9x-1/(3sqrtx))^18

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  13. Find the middle term in the expansion of (3-(x^3)/6)^7.

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  14. Find the middle term in the expansion of (x/3+9y)^10

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  15. In the expansion of (1+a)^(m+n), prove that the coefficient of a^m and...

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  16. The coefficients of the (r-1)^(th),r^(th) and (r+1)^(th) terms in the ...

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  17. Prove that the coefficient of x^n in the expansion of (1+x)^(2n) is ...

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  18. Find the positive value of m for which the coefficient of x^2 in the e...

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  19. Find the term independent of x in the expansion of ((3x^2)/2-1/(3x))^6

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  20. If the coefficients of a^(r-1), a^r and a^(r+1) in the expansion of (1...

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