Assignment -2 co cos 2ax-cos 2bx Q1- Apply Cauchy's residue theorem, Evaluate fo Q2-Show that f 2 xdx 0 (x+1)(x+4) = Q3- Find the value of the integral Q4- Expand f(z) = -1 z+3 z(z-z-2) 1 z-a x-2 dx dz round the circle whose equation is z-a |=R in the region (a) |z| < 1, (b) 1 2 Q5-Show that ez has no singularities.