# What are complex solutions?

## What are complex solutions?

If the discriminant equals 0, then the equation has one real solution, a double root. If the discriminant is less than 0, then the equation has two complex solutions. If the discriminant is greater than 0, then the equation has two real solutions.

How do you find the solution of a complex number?

Solution: Add the real parts and then add the imaginary parts. To subtract complex numbers, subtract the real parts and subtract the imaginary parts.

### What is the formula of complex numbers?

The standard form of writing a complex number is z = a + ib. The standard form of the complex number has two parts, the real part, and the imaginary part. In the complex number z = a + ib, a is the real part and ib is the imaginary part.

What are the two complex solutions?

1) If the discriminant is less than zero, the equation has two complex solution(s). 2) If the discriminant is equal to zero, the equation has one repeated real solution(s).

#### What are irrational solutions?

Irrational solutions – An irrational number is a number that cannot be written as a fraction. In these cases, the equation does not have a perfect square, but the solutions can be found by taking the square root and rounding.

What is the value of mod Z?

If z is a complex number and z=x+yi, the modulus of z, denoted by |z| (read as ‘mod z’), is equal to (As always, the sign √means the non-negative square root.) If z is represented by the point P in the complex plane, the modulus of z equals the distance |OP|.

## Who founded complex number?

The idea of a complex number as a point in the complex plane (above) was first described by Danish–Norwegian mathematician Caspar Wessel in 1799, although it had been anticipated as early as 1685 in Wallis’s A Treatise of Algebra.

Is 0 a real solution?

zero, there is one real solution.

### What are real and complex solutions?

The expression b2 − 4ac is called the discriminant, and can be used to determine whether the solutions are real, repeated, or complex: 1) If the discriminant is less than zero, the equation has two complex solution(s). 2) If the discriminant is equal to zero, the equation has one repeated real solution(s).

What are 5 irrational numbers examples?

What are the five examples of irrational numbers? There are many irrational numbers that cannot be written in simplified form. Some of the examples are: √8, √11, √50, Euler’s Number e = 2.718281, Golden ratio, φ= 1.618034.

#### What is a complex number?

So, let’s start out with some of the basic definitions and terminology for complex numbers. The standard form of a complex number is where a a and b b are real numbers and they can be anything, positive, negative, zero, integers, fractions, decimals, it doesn’t matter.

Are the Class 11 NCERT solutions for complex numbers easy to understand?

The Class 11 NCERT solutions for Complex Numbers and Quadratic Equations are very easy to understand. These solutions cover all the exercise questions included in the book and are according to the latest guidelines of CBSE.

## What is NCERT Chapter 5 – complex numbers and quadratic equations?

The major concepts of Maths covered in Chapter 5 – Complex Numbers and Quadratic Equations of NCERT Solutions for Class 11 includes: NCERT Solutions for Class 11 Maths Chapter 5 – Complex Numbers and Quadratic Equations. The chapter Complex Numbers and Quadratic Equations belongs to the unit Algebra, that adds up to 30 marks of the total 80 marks.

Does ax2 + bx + c = 0 include complex numbers?

That means, the solution of such equations include complex numbers. Here, we have found the solution of a quadratic equation ax 2 + bx + c = 0 where D = b 2 – 4ac < 0. Definition of complex numbers, examples and explanations about the real and imaginary parts of the complex numbers have been discussed in this section.