Complex Numbers And Quadratic Equations G11

What is the square root of -4? Can’t answer right? This is because we have learned the roots of only positive integers so far. This is why we cannot find the roots of equations like x2 + 1 = 0. To solve these kinds of quadratic equations, we require the knowledge of complex numbers over the real number system we have learned so far. In this chapter, we will be introduced to imaginary numbers, complex numbers, and their multiplication, division, conjugates, argand planes, the basics of quadratic equations, and methods to solve them.