The value of $$\sqrt{\frac{(1-cos⁡θ)}{(1+cos⁡θ )}}$$​ is:

Correct option is D

Given:

​$$\sqrt{\frac{(1-cos⁡θ)}{(1+cos⁡θ )}}$$  

Solution:

$$\sqrt{\frac{(1-cos⁡θ)}{(1+cos⁡θ )}\times\frac{(1- cos⁡θ)}{(1- cos⁡θ )}}$$        

= $$\sqrt\frac{(1-cos\theta)^2}{( sin^2\theta)}$$   

=  $$\frac{(1-cos\theta)}{sin\theta}$$​

= $$cosec\theta - cot\theta$$