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