Ok, I actually just made a mistake typing the question in here. I fixed it now, and posted pictures of my work so you can see how I got there. The last line (now correct in first post) should have been
show how
[2cosasinb]2 = sin2a sin2b
Thanks for your help :)
Homework Statement
The problem is essentially (I've rephrased it, but this is what it is asking)
show that [ (2n1cosa) / (n2cosa + n1cosb) ]2
is equal to (sin2a sin2b) / (sin2(a+b)cos2(a-b))
where these are for refraction through materials and satisfy n1sina=n2sinb
2. The...
SOLVED:Agreement of 2 values
This is my first post, so I hope this is the write section for it..
How do you check if 2 values agree with each other (I've seen it called the "comparison test", but I can't find what I'm looking for by google-ing that).
For example, you have
x1=563+-12...