A. 7/24
B. 8/27
C. 9/32
D. 11/45
If xr occurs in the expansion (x+1/x2)2n, then its coefficient is:
The sum of the coefficients of (1+2x-4x2)35 is
The number of non zero terms in the expansion of (x+a)100 + (x-a)100 is
If (3 + 4i) is a root of x<sup>2</sup>+px+q=0, then (p, q) is:
The term independent of x in the expansion of (1+x+2x3)(3x2/2-1/3x/)9 is
The number of terms in the expansion of (a+b+c+d)5 is
The coefficient of x2 in1+x2/(1-x)3 is
If p and q are the coefficients of xn in (1+x)2n-1 and (1+x)2n respectively then 2p=
C0+C1/2+C3/3+ …………Cn/n+1+ =
The positive integer which is just greater than (1+0.0001)10000 is