Differentiate each of the following w.r.t x:
To find: Value of 
Formula used: (i) 1 - cos 
= 2
(ii) 1 + cos 
= 2
We have, 
Now, we can see that 
Now differentiating 
1
Differentiate each of the following w.r.t x:
To find: Value of
Formula used: (i) 1 - cos = 2
(ii) 1 + cos = 2
We have,
Now, we can see that
Now differentiating