# Quick Answer: Is Zero A Real Zero?

## Who founded Zero in India?

AryabhataWhat is widely found in textbooks in India is that a mathematician and astronomer, Aryabhata, in the 5th century used zero as a placeholder and in algorithms for finding square roots and cube roots in his Sanskrit treatises..

## Is 0 a polynomial function?

Actually, the term 0 is itself zero polynomial. It is a constant polynomial whose all the coefficients are equal to 0. For a polynomial, there may be few (one or more) values of the variable for which the polynomial may result in zero. These values are known as zeros of a polynomial.

## What is a real zero?

A real zero of a function is a real number that makes the value of the function equal to zero. A real number, r , is a zero of a function f , if f(r)=0 . Example: f(x)=x2−3x+2.

## How many distinct real zeros does zero have?

The discriminant can be positive, zero, or negative, and this determines how many solutions there are to the given quadratic equation. A positive discriminant indicates that the quadratic has two distinct real number solutions. A discriminant of zero indicates that the quadratic has a repeated real number solution.

## Can a real zero be negative?

Note how there are no sign changes between successive terms. This means there are no negative real zeros. Since we are counting the number of possible real zeros, 0 is the lowest number that we can have.

## What does distinct real zeros mean?

What is meant is that the equation has real roots which are different from each other. For example (x-1)*(x-2)*(x-5) = 0 has 3 distinct real roots: 1, 2, and 5. As an example of the OPPOSITE, the equation has 3 real roots (1, 2, 2), but two of them are identical. 14.1K views. View 7 Upvoters.

## Who introduced 0 in mathematics?

MayansThe first recorded zero appeared in Mesopotamia around 3 B.C. The Mayans invented it independently circa 4 A.D. It was later devised in India in the mid-fifth century, spread to Cambodia near the end of the seventh century, and into China and the Islamic countries at the end of the eighth.

## What is a zero in a function?

In mathematics, a zero (also sometimes called a root) of a real-, complex-, or generally vector-valued function , is a member of the domain of such that vanishes at ; that is, the function attains the value of 0 at , or equivalently, is the solution to the equation .

## How do you tell if a function has no real zeros?

If the discriminant of a quadratic function is less than zero, that function has no real roots, and the parabola it represents does not intersect the x-axis.

## What if there was no zero?

Without zero there would be: No algebra, no arithmetic, no decimal, no accounts, no physical quantity to measure, no boundary between negative and positive numbers and most importantly- no computers!

## Can zeros be imaginary?

The imaginary unit (number) is i. An imaginary number is a number whose square is negative. A pure imaginary number can be written in bi form where b is a non-zero real number and i is the imaginary i. … When this occurs, the equation has no roots (zeros) in the set of real numbers.

## How many distinct real zeros does f have?

It has ZERO distinct real number zeros.

## What does it mean when the discriminant is 0?

When the Discriminant is Zero If the discriminant is 0, that means you have a 0 under the square root in the quadratic formula. … The square root of 0 is just 0. When this happens, the plus or minus part of the quadratic formula essentially just goes away. This will leave you with only 1 real solution.

## How do we use 0 today?

The concept of zero, both as a placeholder and as a symbol for nothing, is a relatively recent development. … Today, zero — both as a symbol (or numeral) and a concept meaning the absence of any quantity — allows us to perform calculus, do complicated equations, and to have invented computers.

## How many real roots does the quadratic equation x2 5x 7 0?

The answer is a. The equation has no real solutions. The discriminant of a quadratic function/equation tells us the number of possible roots or zero and their respective nature.