If `z=tan27+icot63` then `arg(z)=`

If arg (z)lttheta , then arg (-z)-arg (z)=

If arg(z) = theta , then arg(bar z) =

If arg(z)= theta , then arg( bar z ) = ?

If z = x+iy, prove that arg(z -1) = tan^(-1)(y/(x-1)) and arg(z+1) = tan^(-1)(y/(x+1))

If arg (z) lt 0 then arg(-z)-arg(z) =.....

If arg(z) lt 0 , then arg(-z)-arg(z) is equal to

If arg(z) lt 0, then find arg(-z) -arg(z) .

If arg(z) lt 0, then find arg(-z) -arg(z) .

arg(bar(z))+arg(-z)={{:(pi",","if arg (z) "lt 0),(-pi",", "if arg (z) "gt 0):},"where" -pi lt arg(z) le pi . If arg(z) gt 0 , then arg (-z)-arg(z) is equal to