- #1
cosmo123
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Homework Statement
[PLAIN]http://img708.imageshack.us/img708/1344/trig.jpg
The angle c is separated from a 2d plane by angle b (perpendicular to the 2d plane). Angle a is angle c projected onto the 2d plane. What is a in terms of b and c?
Homework Equations
The Attempt at a Solution
I put the whole thing in a cuboid, used the lengths of the edges, and came to tan(a)=tan(b)tan(c). Can i just double check this with someone, because i don't trust my maths.
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