Find the exact value of the following function. Show your work and explain the steps you take to find the value. sec(17pi/6) THANK YOU!! (:
I still don't get it ):
@Directrix
Find the exact value of each of the following. In each case, show your work and explain the steps you take to find the value. 1. sin 17pi/6 2. tan 13pi/4 3. sec 11pi/3 I am not sure how to approach this. I looked at the unit circle and know that all three of these go around the circle almost once or one time. Do I have to look at the reference angles for this? Also how does sin, tan and sec affect the answer? I know tan (theta)=y/x, sec(theta)= 1/x and sin(theta)= y.
find \(\frac{17\pi}{6}\) on the unit circle, which is coterminal wtih \(\frac{5\pi}{6}\) because \[\frac{17\pi}{6}-2\pi =\frac{6\pi}{6}\]
look at the first coordinate on the unit circle, that is cosine
take the reciprocal of that number, that is secant
the first coordinate is pi/6 right?
so 6/pi is secant
no you got a cheat sheet?
yes
find \(\frac{5\pi}{6}\) and look at the ordered pair let me know when you find it
(-rad3/2,1/2)
quadrant 2
yes
the first coordinate is cosine
secant is x?
so -2/rad3
yes
that's the final answer?
YES
THANK YOU!!!!!!!!!!!!!!!!!!!!!
yw
unless you have to rationalize the denominator
I don't have to, my teachers prefers it as is.
teacher*
in which case you have to write \[-\frac{2\sqrt3}{3}\]
k good, your teacher has common sense
lol
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