*A new and elementary proof for a theorem in differential equations*

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*A new and elementary proof for a theorem in differential equations*

*The author explores the relationship between saddle points of surfaces and the inflection points of the projected curves.*

*Analytic proofs for the generation of conic sections*

*The author presents a simple proof of a special case of Dirichlet`s celebrated theorem on primes in arithmetic progressions.*

*An arctangent identity is presented visually.*

*Bernoulli`s inequality is presented visually.*

*For what positive number \(x\) is the \(x\)-th root of \( x\) the greatest?*

*A visual proof of the ordering of the means in the title is presented.*