`(cotA+tanB)/(cotB+tanA)=cotAtanB`

(cot A+tanB)/(cotB+tanA) is :

Prove that (cotA-tanA)/(cotA+tanA)=cos2A

Prove that: (tanA + tanB)/(cotA+cotB)=tanAtanB

Prove: (tanA+tanB)/(cotA+cotB)=tanAtanB

Find the values of the following expression. (cotA+tanB)/(cotB+tanA) is

Prove that cotA-tanA=2cotA

If A+B+C=pi , prove that : (cotA+cotB)/(tanA+tanB) + (cotB+cotC)/(tanB+tanC) + (cotC+cotA)/(tanC+tanA) =1

If A+B+C=pi , prove that : (cotA+cotB)/(tanA+tanB) + (cotB+cotC)/(tanB+tanC) + (cotC+cotA)/(tanC+tanA) =1

If A + B + C= 180^@ , prove that (cot A+cotB)/(tanA+tanB)+(cotB+cotC)/(tanB+tanC)+(cotC+cotA)/(tanC+tanA)=1

In triangle A B C ,(sinA+sinB+sinC)/(sinA+sinB-sinC) is equal to tanA/2cotB/2 (b) cotA/2tanB/2 cotA/2cotB/2 (d) tanA/2tanB/2