So, as the title may have given away, I'm trying to figure out implicit differentiation in the multiple variable context. I thought a good practice would be the law of cosines, aka
c^2 = a^2 + b^2 - 2abcosθ.
So I'm trying to find ∂θ/∂a, ∂θ/db, ∂θ/dc.
I tried solving for θ and then taking...