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Frequently Asked Questions (FAQ)
What is d/(dθ)((r(θ))cot(θ))-r(θ)=2 ?
The answer to d/(dθ)((r(θ))cot(θ))-r(θ)=2 is r= 2/(cot(θ)-csc^2(θ)θ-θ);\quad cot(x)-csc^2(x)x-x\ne 0