Question

√{(1-cosA)/1+cosA)}​

Answer 1

hope it's helpful

Step-by-step explanation:

√(1-cosA)/(1+cosA)

√(1-cosA)^2/(1^2-cos^2A)

1-cosA/√sin^2A

1-cosA/sinA

1/sinA -cosA/sinA

cosecA-cotA