The sum of the infinite series 3+1+1/3+(1/3)2+.........(1/3)n+.......... is
The line y = mx +1 is a tangent to y2 = 4x if m equals
The solution for L (t2 e2t) is
The number of real roots of the equation
(x-1)2+(x-2)2+(x-3)2 = 0 is
Order & degree of differential equation d2y/dx2={y+[dy/dx]2}1/4 are
Solution of differential equation xdy-ydx=0 represents