Posted by **nadia** on Saturday, November 10, 2012 at 5:43pm.

write and that is equivalent to each of the following expression,using the related acute angle

a) sin 13pi/6 b) cos 11pi/8

c) tan 7pi/4

- Advance fuctions -
**Reiny**, Saturday, November 10, 2012 at 6:42pm
done, see later post

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