" If "(z1)/((1-cos a-i sin a))" then "Re(z)=

If z=1/(1-cos theta-i sin theta), then Re(z) is a. 0 b. 1/2 c. cot(theta/2) d. 1/2 cot (theta/2)

If z=(1)/(1-cos theta-i sin theta), then Re(z) is a.0 b.(1)/(2) c.cot((theta)/(2)) d.(1)/(2)cot((theta)/(2))

If z=(1)/(1-cos theta- isintheta) then Re(z)=....

If z=1-cos a+i sin a, then ampz=

If z = (1)/(1 - cos theta - i sin theta), the Re (z)=

If (1+i)^2 /(3 - i) =Z , then Re(z) =

The real part of z = (1)/(1-cos theta + i sin theta) is

If (1+i)^2 /(3 - i) , then Re(z) =

If z = 1 - cos theta + i sin theta , then |z| =

If (1 + z)/(1 - z) = cos 2theta + i sin 2theta , show that z = i tan theta .