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The coefficients of three consecutive te...

The coefficients of three consecutive terms in the expansion of `(1+a)^(n)` are in the ratio `1 : 7 : 42`. Find n

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JBD PUBLICATION-BINOMIAL THEOREM-EXAMPLE
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  3. Write the general term in the expansion of: (2x+1/x)^5.

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  4. Write the general term in the expansion of (x^(2)-yx)^(12), x ne 0

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  5. Find 3rd term in the expansion of (3x-y^3/6)^4.

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  6. Find 5th term in the expansion of (2x^2-1/3x)^11.

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  7. Find the rth term from the end in the expansion of (x+a)^n.

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  8. Find the 4th term from the end in the expansion of ((4x)/5-5/(2x))^9

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  9. Find a positive value of m for which the coefficient of x^2 in the exp...

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  10. In the expansion of (1+x)^n, the coefficient of x^(p-1) and of x^(q-1)...

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

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  12. Find the coefficient of a^-6 b^4 in the expansion of (1/a-(2b)/3)^10.

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  13. The coefficients of three consecutive terms in the expansion of (1+a)^...

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  14. Expand each of the following expressions: (2x-3)^6.

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  16. Simplify (x+2y)^10+(x-2y)^10.

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  18. Find the expnsion of (3x^2-2ax+3a^2)^3 using Binomial Theorem.

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  19. Find the term independent of x in the expansion of: (2x+3/x^2)^9.

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

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