![In any `Delta ABC` prove that `(cotA/2+cotB/2+cotC/2)/(cotA +cotB+cotC)=((a+b+c)^2)/(a^2+b^2+ - YouTube In any `Delta ABC` prove that `(cotA/2+cotB/2+cotC/2)/(cotA +cotB+cotC)=((a+b+c)^2)/(a^2+b^2+ - YouTube](https://i.ytimg.com/vi/NeuxEN46JlA/maxresdefault.jpg)
In any `Delta ABC` prove that `(cotA/2+cotB/2+cotC/2)/(cotA +cotB+cotC)=((a+b+c)^2)/(a^2+b^2+ - YouTube
Prove that (cosecA - cotA)^2 = (1-cosA)/(1+cosA) - Sarthaks eConnect | Largest Online Education Community
![If tanA+cotA=2, then find tanA -cotA - Maths - Introduction to Trigonometry - 12665167 | Meritnation.com If tanA+cotA=2, then find tanA -cotA - Maths - Introduction to Trigonometry - 12665167 | Meritnation.com](https://s3mn.mnimgs.com/img/shared/content_ck_images/ck_5b01088f5d87a.png)
If tanA+cotA=2, then find tanA -cotA - Maths - Introduction to Trigonometry - 12665167 | Meritnation.com
![if in a abc cota 2 cotb 2 cotc 2 k cota 2cotb 2 cotc 2 then find the value of k scl308yy -Maths - TopperLearning.com if in a abc cota 2 cotb 2 cotc 2 k cota 2cotb 2 cotc 2 then find the value of k scl308yy -Maths - TopperLearning.com](https://images.topperlearning.com/topper/tinymce/integration/showimage.php?formula=cbd90a165505305271d44e5d95254eb0.png&d=0)