Question

1. Evaluate: e' (1-сot x + cos ec+x)dx​

Answer 1

Answer:

ex ([1 - cot x] + cosec2x) dx

It is of the form

Self (x) + f'(x)] dx = e*f(x) + C =

Where f (x) =1- cotx =

f'(x) = 0 (-cosec 2 x) = cosec² x =

So, our equation becomes

+c}; Sex ( [1- cot x] + cosec?x) dx = e*(1 – cot =

plz maek as brianilest