<PRE><B>Question 172758</B>
Find the exact values of the six trigonometric functions of O(theta) if the terminal sie of O(theta) in standard position contains the point (-5,-4)
I know x=-5 y=-4 and I came up with r=6.4
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And that is all you need to know since:
sin(theta) = y/r
cos(theta) = x/r
tan(theta) = y/x
and you know that csc,sec, and cot are the inverse.
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Cheers,
Stan H.</PRE>