Find the reference angle in radians for angle of 5pi/3. Exact Answer
(5pi)/3 liek this?
yes
hmm. exact answer... meaning no deimals?
no exact answer meaning in radians and not degrees such as radical 3/2
i'm stumped on how to get (5/3)pi into an exact number from what it already is given in radians... time to bring in some bigger guns
@jdoe0001
hmm the most you can do to that is expand by using the radian value for \(\bf \pi\) so \(\bf \cfrac{5\pi}{3}\qquad \pi \approx 3.1416\qquad thus \quad \cfrac{5\pi}{3}\implies \cfrac{5\cdot 3.1416}{3}\quad radians\)
hmmm ohh... wait... you want the reference .. angle...dohh , ok
|dw:1384300296550:dw|
oh gosh, I didn't even notice that part of the question o.O haha
It has to be in an Exact Answer though 5pi/3=360-300=60 degrees= pi/3
yeap, you're correct, it's \(\bf \cfrac{\pi}{3}\)
the \(\large \pi\) unit is already in radians value, so that's proper
thank you for the help
yw
though
could you help me with Use the reference angle to find sec(11pi/6) lol
|dw:1384300910938:dw| \(\bf sec\left(\cfrac{11\pi}{6}\right)\implies sec\left(\cfrac{\pi}{6}\right)\implies \cfrac{1}{cos\left(\frac{\pi}{6}\right)}\)
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