Statement 1 If n Icirc N and lsquo n rsquo is not multiple of 3 and then the value of ar nCr is...........

Statement 1: If n ÎN and ‘n’ is not multiple of 3 and $(1+x+x^{2})^{n}=\sum_{r=0}^{2n}a_{r}x^{4}$ , then the value of $\sum_{r=0}^{n}{(1)}^{r}.a_{r}.^{n}C_{r}$ a_r. ⁿC_r is zero.

Statement 2: Coefficient of xⁿ is the expansion of (1-x³)ⁿ is zero if n =3k+1 or n=3k+2.

Statement 1 is true, statement 2 is true; statement 2 is a correct explanation for statement 1.

Statement2 is true, statement 2 is true; statement 2 is not a correct explanation for statement 1

Statement 1 is true, statement 2 is false

Statement 1 is false, statement 2 is true

Explanation:

Statement 1 is true, statement 2 is true; statement 2 is a correct explanation for statement 1

By: Swaminath Yadav

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Statement 1 If n Icirc N and lsquo n rsquo is not multiple of 3 and then the value of ar nCr is...........

Explanation:

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