Trigonometry

This is not a trick: the cosine of the imaginary number 𝑖 is (e⁻¹ + e)/2. How on Earth does this follow from the definition of the cosine? No matter how hard you try, you cannot c...

Tivadar Danka

@TivadarDanka

Essential Mathematics in Web Development ❍ Use cases ❍ Useful operations ❍ Practice problems ⇩

Swapna Kumar Panda

@swapnakpanda