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The coefficient of x^4 in the expansion ...

The coefficient of `x^4` in the expansion of `(1+x+x^2+x^3)^11` is `lamda` . Then the number of divisors of `lambda`of the form 9k _____

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PATHFINDER-BINOMIAL THEOREM-QUESTION BANK
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  9. If ((1+x)/(1-x))^n=1+a1x+a2x^2+…….+arx^r+…….. then prove that a1+a2+a3...

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  11. If (1+x)^n=a0+a1x+a2x^2+…….+anx^n then prove that (1+(a/a0))(1+(a2)/(a...

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  14. The 10^(th) term in the expansion of (2x^2+1/x)^(12) is

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  17. The sum of series ,^20C0-^20C1+^20C2-^20C3+.....+ ^20C10 is

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  20. The value of 1^2cdotC1+3^2cdotC3+5^2cdotC5+......, is

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