Sum Of Coefficient In The Expansion Of (x + 2y + z)10 is

The coefficient of x^m in (1 + x)^r + (1 + x)^r+1 + (1 + x)^r+2 +….+ (1 + x)ⁿ. r≤ m ≤ n is

 respect to x, is

 is a polynomial of degree 5, then n

If in the expression of (1 + x)m (1 – x)n. the coefficient of x and x² are 3 and – 6 respectively, then m is

The number of terms in (1 + x)¹⁰¹ (1 + x² – x)¹⁰⁰ is

In the binomial expansion of (a – b)n, n ≤ 5, the sum of the 5^th and 5^thterms is zero. Then  equals

The coefficient of x⁸ in the expression of 

The coefficient of xn in the expansion of (1 + x) (1 – x)n is

If the sum of the coefficients in the expansion of (1 – 3x + 10x²)ⁿ is A and it the sum of the coefficients in the expansion of (1 + x²)ⁿ is 

B, then