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If the absolute term (independent of x )...

If the absolute term (independent of x ) in the expansion of `(sqrtx-k//x^2)^10` is 405 then `k=`

A

`pm 3^(1//4)`

B

`pm 4^(1//3)`

C

`pm 2`

D

`pm 3`

Text Solution

Verified by Experts

The correct Answer is:
D
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AAKASH SERIES-BINOMIAL THEOREM-EXERCISE - II
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  2. The term independent of x in (2x^(1//2)-3x^(-1//3))^20

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  3. If the absolute term (independent of x ) in the expansion of (sqrtx-k/...

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  4. If the 5th term is the term independent of x in the expansion of (x^(2...

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  5. If a term independent of x is to exist in the expansion of (x + (1)/(x...

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  6. The term independent of x in the expansion of (1 + x)^n (1 + 1/x)^n is

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  7. The sum of the coefficient in the expansion of (1 + x+x^2)^n is

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  8. The sum of the binomial coefficients in the expansion of ((2x)/(3) + (...

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  9. The two successive terms in the expansion (1+x)^24 whose coeff's are i...

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  10. If two consecutive terms in the expansion of (x+a)^n are equal to wher...

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  11. The coefficient of x^53 in sum(r = 0)^(100) ""^100Cr (x - 3)^(100 - r)...

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  12. Let n in N . If (1 + x)^n = a0 + a1 x + a2x^2+…. + anx^n and a(n-3), a...

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  13. If the coefficient of rth term and (r+1)th term in the expansion of (...

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  14. If the coefficients of r^(th) , (r + 1)^(th) and (r + 2)^(th) terms i...

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  15. If the coefficients of three consecutive terms in the expansion of (1+...

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  16. The coefficient of x^n in expansion of (1+x) (1-x)^n is

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  17. The coefficient of x^11 in the expansion of (1- 2x + 3x^2) (1 + x)^11 ...

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  18. The coefficient of x^5 in the expansion of (x^2 - x - 2)^5 is

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  19. The coefficient of x^4 in (1+x+x^2+x^3)^11 is

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  20. Coefficient of x^5 in ( 1+ x)^21 + (1 + x)^22 + …….+ (1 + x)^30 is

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