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The middle term of the expansion of (4x+...

The middle term of the expansion of `(4x+5y)^18` is

A

a) 9th term

B

b) 10th term

C

c) 11th term

D

d) 12th term

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The correct Answer is:
B
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PATHFINDER-BINOMIAL THEOREM AND PRINCIPLE OF MATHEMATICAL INDUCTION-QUESTION BANK
  1. The coefficient of the middle term of the expansion of (1-2x+x^2)^n is

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  2. The sum of the coefficients in the expansion of (1-2x+2x^2)^(2014) is

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  3. The middle term of the expansion of (4x+5y)^18 is

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  4. The value of (^8C1+^8C2+^8C3+....+^8C8) is

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  5. The value upto 3 decimal place of (0.999)^3 is (applying Binomial Theo...

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  6. Find the 10th term of (2x^2+1/x)^12.

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  7. If rth term in the expansion of (x+1/x)^10 is independent of x, then f...

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  8. Find the middle term in the expansion of (x-1/(2y))^10.

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  9. find the value of (99)^4.

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  10. Find a, if 17th and 18th terms in the expansions of (2+a)^50 are equal...

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  11. If the 3rd term in the expansion of (1/x+x^(log(10)x))^5 is 1000, then...

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  12. Determine the constant term in the expansion of (x^3-1/x^2)^15.

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  13. Find the coefficient of x^20 in the expression of (1+x^2)^40(x^2+2+1/x...

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  14. Find the term independent of x in the expansion of (sqrtx+1/(3x^2))^10...

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  15. Find the coefficient of x in (1-2x^3+3x^5)(1+x+1/x)^10.

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  16. In the expansion of (1+x)^(m+n), where m & n are +ve integers, prove t...

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  17. Determine the term independent of x in the expansion of (3x^2-1/(2x^3)...

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  18. Find the coefficient of x^5 in the expression of (1+x^2)^5(1+x)^4.

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  19. Which term in the expansion of (1+x)^p(1+1/x)^q is independent of x, w...

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  20. Determine the coefficient of x^4 in the expansion of (1+x+x^2+x^3)^n.

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