Posted by **Jossie** on Thursday, March 21, 2013 at 4:13am.

evaluate each of the following..sin 130.tan 60/cos 540.tan 230.sin 400

- mathematics -
**Steve**, Thursday, March 21, 2013 at 4:41am
just plug the numbers into your favorite calculator. What's the trouble?

- mathematics -
**Steve**, Thursday, March 21, 2013 at 4:44am
or, reduce to

(sin 50)(tan 60) / (cos 180)(tan 50)(sin 40)

= (cos 40)(cot 30) / -(cot 40)(sin 40)

= -cot 30

= -âˆš3

- mathematics -
**Steve**, Thursday, March 21, 2013 at 11:55am
Huh. Strange font messup

that's -√3

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