Posted by June on September 28, 2002 at 13:51:24:
In Reply to: problem posted by June on September 28, 2002 at 13:46:04:
: the question is find sin 2, cos 2, tan 2.
: tan x = -sqrt 2 and pi/2 < x < pi
: How do you find cos and sin when you just know tan, I can't find any examples in the book.
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