Prove the double angle identities using Euler's formula

Boundary of a set in a metric space, Real Analysis II

Closure of a set, Real Analysis II

Accumulation Points aka Limit Points, Real Analysis II

Closed sets in a metric space, Real Analysis II

Interior of a set in a metric space, Real Analysis II

Unions and intersections of open sets, Real Analysis II

Open sets in a metric space (M,d), with examples, Real Analysis II

Metric Spaces Introduction, Real Analysis II

Norms, lp norms, and the sup norm, Real Analysis II

Integrate ln(x)^1000, Integral Calculus Problem

Inner Product Spaces and Cauchy Schwarz, Real Analysis II

Introduction to inner product, norm, and metric on Rn, Real Analysis II

Flux across a hemisphere, with and without the Divergence Theorem, Multivariable Calculus

Intersection of two planes: the line and the angle, Multivariable Calculus

Line integral along a plane and sphere intersection, with Stokes and without

Integration with residue calculus example with order 2, Complex Analysis

Calculating residues at simple poles, Complex Analysis

Residue calculus integration example with simple poles, Complex Analysis

Why is the tan function called tangent?

Compute T, N, and B for a parameterized curve, Multivariable Calculus

Prove the double angle identities using Euler's formula

Projectile motion: optimal angle, landing time and location in Multivariable Calculus

Laplace Transforms 12: Dirac Delta Examples

Laplace Transforms 11: The Dirac Delta (Unit Impulse)