Question

tanx/1-cotx + cotx/1-tanx=1+tanx+cotx=1+secxcosecx

Answer 1

$= = = = = = = = = = = = =$
ANSWER IS IN THE IMAGE

Answer 2

Answer:

see the attachment for the solution

formula used :

a³ - b³ = (a - b)(a ² + b² +ab)

and

tanx*cotx = 1

$.$