SubArea: Complex numbers in algebraic and polar formLevel: AProject ID: 9000034802Accepted: 1Clonable: 0Easy: 1Find the opposite number to the complex number \(z = 3 -\mathrm{i}\).\(- 3 + \mathrm{i}\)\(- 3 -\mathrm{i}\)\(3 + \mathrm{i}\)\(3 -\mathrm{i}\)