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

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

Prove that: cot2A + tanA= cotA - cot 2A

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

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

Prove that : (tanA)/(1-cotA)+(cotA)/(1-tanA)=1+secA".cosec"A

Prove that : (tanA)/(1-cotA)+(cotA)/(1-tanA)=1+secA" cosec"A

If A+B+C=pi , prove that : (cotB+cotC) (cotC+cotA) (cotA+cotB)=cosecA cosecB cosecC

prove that ((1-tanA)/(1-cotA))^2=tan^2A

If a^2,b^2,c^2 are in A.P., prove that cotA ,cotB ,cotC are in AdotPdot

If a^2,b^2,c^2 are in A.P., prove that cotA ,cotB ,cotC are in AdotPdot