If `cotA+1/cotA=1` then `cot^2A+1/cot^2A=`

If cotA=b/a then 2secA+1=

If tanA+tanB=a and cotA+cotB=b then show that cot(A+B)=1/a-1/b

Prove the following identities, where the angles involved are acute angles for which the expressions are defined. : (cosA-sinA+1)/(cosA+sinA-1)=cosecA+cotA, using the identity coses^2A=1+cot^2A)

Prove that cot2A=(cot^2A-1)/(2cotA)

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

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

Prove that cotA-cosec2A=cot2A

Prove that cotA-tanA=2cot2A

If tanA=(3)/(2) , then (1+cotA)/(1-cotA)=?

If tanA +cotA=2 , then the value of tan^(4)A+cot^(4)A=