[" (b) Paraller to the "y" -dxis,"],[" (c) Passing through the origin."],[" Find the values of "theta" and "p," if the equation "x cos theta+y sin theta=p" is the normal form "],[" of the line "sqrt(3)x+y+2=0" ."],[" Find the equations of the lines,which cut-off intercepts on the axes whose sum "]