�
�=𝑐𝑜𝑠𝑥+𝑠𝑖𝑛𝑥
𝑠𝑖𝑛𝑥−𝑐𝑜𝑠𝑥
The given function is a quotient of two expressions. We use the quotient rule for differentiation, which states:
�
�
𝑑𝑥 (𝑢
𝑣)=
𝑣 𝑑𝑣
𝑑𝑥−𝑢 𝑑𝑣
𝑑𝑥
𝑣2
Mathbot Says...
I wasn't able to parse your question, but the HE.NET team is hard at work making me smarter.