Question

Development of complex numbers?​

Answer 1

Explanation:

Cardano is credited with introducing complex numbers—in his attempts to find solutions to cubic equations. ... A complex number whose real part is zero is said to be purely imaginary, and the points for these numbers lie on the vertical axis of the complex plane.

Answer 2

Answer:

The 16th-century Italian mathematician Gerolamo Cardano is credited with introducing complex numbers—in his attempts to find solutions to cubic equations. ... A complex number whose real part is zero is said to be purely imaginary, and the points for these numbers lie on the vertical axis of the complex plane.