Q. 74.3( 3 Votes )
Find 
, when
𝒳 = (log t + cos t), 𝒴 = (et + sin t)
Answer :
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
= 
= 
.
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