determine the value of the following if 0 is less than or = to theta and theta is less than 2 pie. 1) sin theta = -1 = this is my answer im not sure if it's right though= 3 pie/2 2) sec theta= -2root3/3=
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Originally Posted by Dave19 determine the value of the following if 0 is less than or = to theta and theta is less than 2 pie. 1) sin theta = -1 = this is my answer im not sure if it's right though= 3 pie/2 yes correct.. Originally Posted by Dave19 2) sec theta= -2root3/3= note: $\displaystyle \sec \theta = \frac{1}{\cos \theta}$ this means that $\displaystyle \cos \theta = \frac{-3}{2\sqrt{3}} = \frac{-\sqrt{3}}{2}$
is it just 7 pie/6 or is it 5pie/6 and 7pie/6
Last edited by Dave19; Jul 6th 2008 at 07:56 AM.
Originally Posted by Dave19 is it just 7 pie/6 or is it 5pie/6 and 7pie/6 both since the only restriction is $\displaystyle 0 \leq \theta < 2\pi$..
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