In ` x ,` the coefficient of `x` is -1.

In sqrt2x -1 the coefficient of x is :

In sqrt5x -1 the coefficient of x is :

Identify terms which contain x and give the coefficient of x. 1 + x + xy

Identify terms which contains x and give the coefficient of x. 1+x+xy

Prove that the coefficients of x^n in (1+x)^(2n) is twice the coefficient of x^n in (1+x)^(2n-1)dot

In the expansion of (1+x)^n , the coefficient of x^(p-1) and of x^(q-1) are equal. Show that p+q=n+2, p ne q .

Identify terms which contain x and give the coefficient of x:- 1+x+xy

If sum of the coefficients in the expansion of (x+1/x)^(n) is 128, then coefficient of x in the expansion of (x+1/x)^(n) is