the directions are: find the exact value of the expression. Use a graphing utility to verify your results.
I've done the problem but I'm not sure if I've done it right... and I'm also unsure about the negative in the original equation:
the problem is::
this is what I've done so far-
I drew the triangle using tan=opposite/adjacent
then I used pythagorean theorem to find the hypotenuse. it was the square root of (34).
after this I found the sec. which was the square root of (34)/5
my question is if what I've is correct and where does the negative sign go in finding the solution?
Am I supposed to just add it into the final answer???
p.s - I don't know how to make the square roots appear on the screen... that's why I wrote it out... everything in parentheses is under the square root.