Let
So, the given equations becomes
Adding equation (i) and (ii) we get,
⇒
⇒
Using (iii) in (i), we get
⇒
⇒
⇒
Substituting
⇒
Hence,
Let
So, the given equations becomes
Adding equation (i) and (ii) we get,
⇒
⇒
Using (iii) in (i), we get
⇒
⇒
⇒
Substituting
⇒
Hence,