Find 
, when
Theorem: y and x are given in a different variable that is t . We can find 
by finding 
and 
and then dividing them to get the required thing.
= 
= et + cost ………..(1) 
= 
- sint. …………….(2) 
Dividing (1) and (2), we get
= 
= 
.
1
Find , when
Theorem: y and x are given in a different variable that is t . We can find by finding and and then dividing them to get the required thing.
=
= et + cost ………..(1)
= - sint. …………….(2)
Dividing (1) and (2), we get
=
= .