in the equation work = Fdcos/sin(theta), when will i use the sine and the cosine? what type of situations???

Question

when can i use sin or cos in the work=force x distance x sin/cos(B)??
in the equation work = Fdcos/sin(B), when will i use the sine and the cosine? what type of situations??? please give an example. or just tell me when to use the sine or the cosine. it the sine work against gravity? i am confused.

Answer 1

cos is in the horizantal direction
sin is in the vertical direction

Answer 2

You already asked this question.
I have already provided an explicit answer.
Check your other post (you doubled it up) and you will find the answer.