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In the expansion of (x^2-1/(3x))^9 the t...

In the expansion of `(x^2-1/(3x))^9` the term without `x` is equal to a. `(28)/(81)` b. `(-8)/(243)` c. `(28)/(243)` d. none of these

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RD SHARMA ENGLISH-BINOMIAL THEOREM-All Questions
  1. The number of irrational terms in the expansion of (4^(1/5)+7^(1/10))...

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  2. The coefficient of x^(-17) in the expansion of (x^4-1/x^3)^(15) is

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  3. In the expansion of (x^2-1/(3x))^9 the term without x is equal to a. (...

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  4. If in the expansion of (1+x)^(15), the coefficients of (2r+3)^(th) a n...

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  5. The middle term of the expansion of ((2x^2)/3+3/(2x^2))^(10) is a. 251...

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  6. If in the expansion of (x^4-1/(x^3))^(15),\ x^(-17) occurs in rth term...

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  7. In the expansion of (x-1/(3x^2))^9, the term independent of x is a. T3...

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  8. If the coefficients of 5th, 6th , and 7th terms in the expansion of (1...

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  9. Find the term independent o f x in the expansion of the following expr...

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  10. If A and B respectively denote the sum of the odd terms and sum of the...

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  11. If the coefficient of x in the expansion of (x^2 +k/x)^5 is 270, then...

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  12. The coefficient of x^4 in (x//2-3//x^2)^10 is (405)/(256) b. (504)...

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  13. The number of terms in the expansion of (x+a)^100+(x-a)^100 after simp...

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  14. If T2/T3 in the expansion of (a + b)^n and T3/T4 in the expansion o...

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  15. The coefficient of 1//x in the expansion of (1+x)^n(1+1//x)^n is (n !)...

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  16. The sum of the binomial coefficients of [2x+1/x]^n is equal to 256. Th...

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  17. If the fifth term of the expansion (a^(2//3)+a^(-1))^n does not contai...

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  18. The coefficient of x^(-3) in the expansion of (x-m/x)^(11) is a. -924 ...

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  19. The coefficient of the term independent of x in the expansion of (a x+...

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  20. The coefficient x^5 in the expansion of (1+x)^(21)+(1+x)^(22)++(1+x)^...

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