Class 11 Maths Revision Notes Chapter 5 Complex Numbers and Quadratic Equations brings a compilation of all the important concepts to learn in this chapter. These notes are designed carefully by subject experts who have explained in detail the need to know facts about topics in every chapter. The definition of a complex number and quadratic equation are:
- A complex number can be written in the form a + bi where a and b are real numbers (including 0) and i is an imaginary number.
Therefore a complex number contains two ‘parts’: one that is real and another part that
Note: Even though complex has an imaginary part, there are actually many real life applications of these “imaginary” numbers
- A quadratic equation is an equation of the second degree, meaning it contains at least one term that is squared. The standard form is ax² + bx + c = 0 with a, b, and c being constants, or numerical coefficients, and x is an unknown variable. One absolute rule is that the first constant “a” cannot be a zero
Students can find various explanations of concepts like argand plane and algebra of complex numbers. Students can find the definition of terms such as De-Moivre’s theorem, quadratic expression etc and along with that, they will be seeing tables mentioning the roots of equations. These topics, if prepared with the help of these notes, will yield fruitful results.
|Complex Numbers||Argan Plane and Polar Representation of Complex Number|
|Quadratic Equation||Quadratic Formula & Quadratic Polynomial|
Frequently asked Questions on CBSE Class 11 Maths Notes Chapter 5: Complex Numbers and Quadratic Equations
What is a complex number?
Complex numbers are numbers that consist of two parts: a real number and an imaginary number.
What is the meaning of a Quadratic equation?
A quadratic equation in math is a second-degree equation of the form ax² + bx + c = 0.
What is the meaning of modulus?
Modulus is the factor by which a logarithm of a number to one base is multiplied to obtain the logarithm of the number to a new base.