mathematics
posted by Jossie .
evaluate each of the following..sin 130.tan 60/cos 540.tan 230.sin 400

just plug the numbers into your favorite calculator. What's the trouble?

or, reduce to
(sin 50)(tan 60) / (cos 180)(tan 50)(sin 40)
= (cos 40)(cot 30) / (cot 40)(sin 40)
= cot 30
= âˆš3 
Huh. Strange font messup
that's √3 
sin 130.tan 60/cos 540.tan 230.sin 400