Vikas TU
Last Activity: 9 Years ago
Let x = cosa = > dx/da= -sina …................(1)
y = sina = > dy/da = cosa …...............(2)
From eqns. (1) and (2)
dx/dy = –sina/cosa..............................(3)
Now in integeral form, ydy /(x2+y2) = dxdx/dy =y/(x2 + y2)from eqns. (1), (2) and (3) we get,-sina/cosa = sinasina*(1 + 1/cosa) =0sina = 0 and cosa = -1a = +-npie and a = (2n ± 1)pieTake the intersection.