If `a ,\ b\ a n d\ c\ a r e\ ` respectively the coefficients of `x^2` in ` x^2,\ 2x^2+x` and `2x-x^2` respectively, then `a+b+c=` 0 (b) `-2` 2 (d) `-1`

If a ,\ b\ a n d\ c\ a r e\ respectively the coefficients of x^2 in x^2,\ 2x^2+x and 2x-x^2 respectively, then a+b+c= (a)0 (b) -2 2 (d) -1

If A and B are the coefficients of x^(n) in the expansion (1+x)^(2n) and (1+x)^(2n-1) respectively,then

If A and B are the coefficients of x^n in the expansion (1 + x)^(2n) and (1 + x)^(2n-1) respectively, then

If A and B are the coefficients of x^n in the expansion (1 + x)^(2n) and (1 + x)^(2n-1) respectively, then

If a\ a n d\ b are the coefficients of x^n in the expansions of (1+x)^(2n) and (1+x)^(2n-1) respectively, find a/b .

If A and B are the coefficients of x^n in the expansion (1 + x)^(2n) and (1 + x)^(2n-1) respectively, then A/B is

If a\ a n d\ b are respectively the sum and product of coefficients of terms in the expression x^2+y^2+z^2-x y-y z-z x , then a+2b= (a)0 (b) 2 (c) -2 (d) -1

Let a and b be the number of solutions and sum of solutions of (2x)/(x-1)-|x|=(x^2)/(|x-1|) respectively, then a=3 (b) b=1 (c) b=2 (d) a=2

If a ,b ,c in R^+a n d2b=a+c , then check the nature of roots of equation a x^2+2b x+c=0.