frac{1 + tan^2A}{1 + cot^2A}) = (\frac{1 - tanA}{1 - cotA})^2\) = tan^2A - Sarthaks eConnect | Largest Online Education Community
Prove that (cosecA - cotA)^2 = (1-cosA)/(1+cosA) - Sarthaks eConnect | Largest Online Education Community
Prove that: (1+tan^2A/1+cot^2A)=(1-tanA/1-cotA)^2=tan^2A. - Sarthaks eConnect | Largest Online Education Community
![In a ABC , if | cotA/2 & cotB/2 & cotC/2 tanB/2 + tanC/2 & tanA/2 + tanC/2 & tanA/2 + tanB/2 1 & 1 & 1 | = 0 , then the triangle must be In a ABC , if | cotA/2 & cotB/2 & cotC/2 tanB/2 + tanC/2 & tanA/2 + tanC/2 & tanA/2 + tanB/2 1 & 1 & 1 | = 0 , then the triangle must be](https://haygot.s3.amazonaws.com/questions/1356343_1132794_ans_aff9744338b845ea9db98538943ad2b3.jpg)
In a ABC , if | cotA/2 & cotB/2 & cotC/2 tanB/2 + tanC/2 & tanA/2 + tanC/2 & tanA/2 + tanB/2 1 & 1 & 1 | = 0 , then the triangle must be
![If x=cotA+cosA and y=CotA-CosA then prove that (x-y/x+y)^2+(x-y/2)^2 =1 |most important question-10| - YouTube If x=cotA+cosA and y=CotA-CosA then prove that (x-y/x+y)^2+(x-y/2)^2 =1 |most important question-10| - YouTube](https://i.ytimg.com/vi/Pd980FYuiNs/maxresdefault.jpg)