Let I =
Putting
I =
=
=
=
I = ……….(i)
I =
=
I =
I = ……….(ii)
For evaluating , putting
=
=
=
= ……….(iii)
Putting this value in eq. (ii),
I =
I =
=
I =
Let I =
Putting
I =
=
=
=
I = ……….(i)
I =
=
I =
I = ……….(ii)
For evaluating , putting
=
=
=
= ……….(iii)
Putting this value in eq. (ii),
I =
I =
=
I =