Question

sin (11pi/12) find exact value

Answer 1

If you let pi = 180, you could put it degree form and figure it out from there.

Answer 2

or you can think of it this way:
\(\large sin(\frac{11\pi}{12})=sin(\frac{\frac{11\pi}{6}}{2}) \) ....
Half-angle formula anyone?

Answer 3

Now why would anyone want to do it that way?

Answer 4

After simplifying I get

\(\sin(165^{\circ})\)

Answer 5

hmmm so it would be
\[(\sqrt{6}+\sqrt{2})/4\]

Answer 6

Which can be further broken down to

\(\sin(120 + 45)\)

Answer 7

Okay, so which hint did you use...mine or dpalnc?

Answer 8

yours :O

Answer 9

Awesome