l. If the coefficients of three successive terms in the expansionof `(1+x)^n` be a, b and c respectively, then show that,`n=(2ac+b(a+c))/(b^2-ac)` and `(a(b+ c))/(b^2-ac)` th term has coefficient a

If the coefficients of three successive terms in the expansion of (1+x)^(n) be a ,b and c respectively , then show that , n=(2ac+b(a+c))/(b^(2)-ac)and(a(b+c))/(b^(2)-ac)= no. of the terms has coefficients a .

The coefficient of three consecutive terms in the expansion of (1+x)^n are a, b, c respectively prove that (2ac+b(a+c))/(b^2-ac)=n .

If the 3rd, 4th. 5th and sixth term in the expansion of (x+alpha)^n are a,b,c,d respectively, then prove that ((b^2-ac)/(c^2-bd))=(5a)/(3c).

If a, b and c are three consecutive coefficients terms in the expansion of (1+x)^n , then find n.

If a, b and c are three consecutive coefficients terms in the expansion of (1+x)^n , then find n.

If a, b and c are three consecutive coefficients terms in the expansion of (1+x)^n , then find n.

If a,b and c are three consecutive coefficients terms in the expansion of (1+x)^(n), then find n.

If 6th, 7th, 8th and 9th terms of (x+y)^n are a, b,c and d respectively, then prove that : (b^2-ac)/(c^2-bd)=4/3.a/c .

if a,b,c and d are the coefficient of four consecutive terms in the expansion of (1+x)^(n) then (a)/(a+b)+(C) /(c+d)=?