Monday, February 19, 2007

assn 8, no. 5

i know this problem is insanely simple, however i keep doing it and my answer doesn't seem to be right. anyone care to explain?

1 Comments:

Blogger MannyLau said...

you can first use the tan(x-y) identity, seeting x as pi/3 and y as pi/4, you can then plug it into the identity, making it (tan(pi/3)-tan(pi/4))/ (1-tan(pi/3)tan(pi/4))
then you shoudl get (root (3)) - 1)/(1-root(3)) then multiply by the conjecgate to get 2 - root 3

7:24 PM  

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