If `(1 + ax)^n= 1 +8x+ 24x^2 +.....` then the value of a and n is

If (1 +px)^(n) = 1 + 24x + 264x^(2) + .. . then

If (1+ax)^n = 1 + 8x + 24x^2 + … and a line through (a, n) cuts the circle x^2 + y^2 = 4 in A and B , then PA.PB = . (A) 4 (B) 16 (C) 8 (D) none of these

The first three terms in the expansion of (1+ax)^(n)(n!=0) are 1,6x and 16x^(2). Then find the value of a and n.

The first 3 terms in the expansion of (1+ax)^(n) are 1-24x+384x^(2) Find the value of a and the value of n. b Hence find the term in x^(3)

If (1+ax)^(n)=1+10x+40x^(2)+…. then value of (a+n)/(a-n) is

If (1+by)^(n)=(1+8y+24y^(2)+....) where n in N then the value of b and n are respectively-

If alpha an integer and P (alpha, alpha^2) is a point in the interior of the quadrilateral x=0, y=0, 4x+y-21=0 and 3x+y-4=0, and (1+ax)^n = 1 + 8x+24x^2 + …, then alpha= (A) a (B) -a (C) a^2 (D) none of these