Question

2css X = (sin X/1+cos X) + (1+cos X/sin X)

Answer 1

i can simplify this to
sin X = 1/cos X
and since |sin X| <1 and |cos X| <1
the reciprocal of either would be greater than 1
so No solution would be my answer

Answer 2

i think you misread the question
i mean he is missing some paranthesis
cow no!
its an identity thing i belive check my attachment

Answer 3

oh oops i thought left hand side was 2 cos X

Answer 4

i think he meant cscx

Answer 5

then yeah you are right
2/sin = 2/sin
1=1