Copied Determine the minimal polynomial of \(\sin (2\pi /5)\) over \(\mathbb {Q}\). Raw LaTeX Determine the minimal polynomial of \(\sin(2\pi/5)\) over \(\mathbb{Q}\). Topic Tags Galois Groups of Polynomials Irreducible Polynomials Matrix Similarity, Jordan Forms, and Finite-Order Diagonalization Polynomial Rings and Ring Homomorphism Kernels