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I three consecutive coefficients in the ...

I three consecutive coefficients in the expansion of `(1+x)^n` are in the ratio 6:33:110, find n and r.

A

9

B

6

C

12

D

16

Text Solution

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The correct Answer is:
C
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DISHA PUBLICATION-BINOMIAL THEOREM -EXERCISE-1 (CONCEPT BUILDER )
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  3. I three consecutive coefficients in the expansion of (1+x)^n are in th...

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  4. If I is integral part of (2+ sqrt(3))^n and f is its fractional part....

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  8. The expression (1)/( sqrt( 3x +1)) [ ( ( 1+ sqrt( 3x + 1))/(2))^(7) -...

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  9. If z = 1/3 + (1.3)/(3.6) + (1.3.5)/(3.6.9) + .... then

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  10. If the sum of the coefficients in the expansion of (1 + 2x)^(n) is...

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  11. The coefficient of the term independent of x in the exampansion of ((x...

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  12. If the coefficient of (r +1)^(th) term in the expansion of (1 +x)^...

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  13. In the binomial expansion of (a - b)^(n) , n ge 5 , the sum of the ...

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  14. If r^(th)term in the expansion of (x/3-2/x^2)^(10)contains x^4, then f...

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  15. If t(1) is the rth term in the expansion of (1+x)^(101), then what is ...

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  16. The middle term in the expansion of (1+(1)/(x^(2)))^(n) ( 1+x^(2))^(n)...

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  17. I three consecutive coefficients in the expansion of (1+x)^n are in th...

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  18. If the middle term in the expansion of (x^2+1//x)^n is 924 x^6, then f...

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  19. If the middle term in the expansion of ((1)/(x)+x sinx)^(10) is equal ...

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