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Write the general term in the expansion ...

Write the general term in the expansion of `(x^2-y x)^(12),x!=0`

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The correct Answer is:
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In the expansion of `(x^(2)-yx)^(12)`
General term `T_(r+1)=^(12)C_(r)(x^(2))^(12-r).(-yx)^(r)`
`=^(12)C_(r).x^(24-2r).(-1)^(r)y^(r)x^(r)`
`=(-1)^(r).^(12)C_(r)x^(24-r)y^(r)`
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NAGEEN PRAKASHAN ENGLISH-BINOMIAL THEOREM-Exericse 8.2
  1. Find the coefficient of a^5b^7in(a-2b)^(12)

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  2. Write the general term in the expansion of (x^2-y)^6dot

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  3. Write the general term in the expansion of (x^2-y x)^(12),x!=0

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

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  5. Find 13th term in the expansion of (9x-1/(3x))^(18),\ x!=0.

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

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

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

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

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  10. The coefficient of x^(n) in the expansion of (1 + x)^(2n) " and " (1 +...

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  11. Find a positive value of m for which the coefficient of x^(2) in the e...

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

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

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  14. Write the general term in the expansion of (x^2-y)^6dot

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  15. Write the general term in the expansion of (x^2-y x)^(12),x!=0

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  16. Find the 4^(t h)term in the expansion of (x-2y)^(12).

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  17. Find the 13^(t h)term in the expansion of (9x-1/(3sqrt(x)))^(18),x!=0

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

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

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

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