For Natural Number m, n if (1 – y)m (1 + y)n = 1 + A1 y + a2 y2 +….. and a1 = a2 = 10, Them (m, n) Is

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

Sum of coefficient in the expansion of (x + 2y + z)¹⁰ 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

The coefficient t²⁴ in (1 + t²)¹² (1 + t¹²) (1 + t²⁴) is

If x is + ive, the first – ive term in the expansion of (1 + x)^27/5 is: