# Lec 31 - Degree of Polynomials | Summary and Q&A

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August 19, 2021
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IIT Madras - B.S. Degree Programme
Lec 31 - Degree of Polynomials

## TL;DR

The degree of a polynomial is determined by the highest exponent in the terms. It helps classify polynomials.

## Key Insights

• 🍉 The degree of a variable in a term is determined by the exponent on that variable.
• ✋ The degree of a polynomial is determined by the highest degree among its terms with non-zero coefficients.
• ❓ A constant polynomial has a degree of 0.
• 🆘 The degree of a polynomial helps classify it into various categories such as linear, quadratic, cubic, quartic, or quintic.
• 0️⃣ The degree of a polynomial with zero coefficients is undefined.
• 💁 The classification of polynomials based on degree provides more specific information about their properties.
• 🖐️ The degree of a polynomial plays an important role in mathematical calculations and problem-solving.

## Transcript

So, in particular, if I want to tell something about a Polynomial, an important property is a degree of the polynomial. So, what is the degree of the polynomial? For demonstration purposes, let me take one example. Let us say my example is 3x cube plus 4x square y square plus 10y plus 1, this is my example. Then, I say this is the example. So, if I... Read More

### Q: What is the degree of a polynomial?

The degree of a polynomial is determined by the highest degree among its terms with non-zero coefficients. It helps classify polynomials based on their degree.

### Q: How is the degree of a variable determined in a term?

The degree of a variable in a term is the exponent on that variable. For example, in the term 4x^2y^2, the degree of x is 2 and the degree of y is also 2.

### Q: What is the degree of the polynomial 3x^2 + 4x^2y^2 + 10y + 1?

Each term in the polynomial has a different degree. The first term has a degree of 2, the second term has a degree of 4, the third term has a degree of 1, and the last term is a constant with a degree of 0. The highest degree among these terms is 4, making the polynomial a degree 4 polynomial.

### Q: What happens with a polynomial when the coefficient is zero?

If the coefficient of a term is zero, the term is eliminated, and the polynomial may have a lower degree. It is important to note that a constant term can never be equal to zero in order to determine the degree of a polynomial.

### Q: What is the degree of a polynomial?

The degree of a polynomial is determined by the highest degree among its terms with non-zero coefficients. It helps classify polynomials based on their degree.

## More Insights

• The degree of a variable in a term is determined by the exponent on that variable.

• The degree of a polynomial is determined by the highest degree among its terms with non-zero coefficients.

• A constant polynomial has a degree of 0.

• The degree of a polynomial helps classify it into various categories such as linear, quadratic, cubic, quartic, or quintic.

• The degree of a polynomial with zero coefficients is undefined.

• The classification of polynomials based on degree provides more specific information about their properties.

• The degree of a polynomial plays an important role in mathematical calculations and problem-solving.

• Understanding polynomial degrees is crucial in algebra and calculus.

## Summary & Key Takeaways

• A polynomial's degree is based on the highest exponent in its terms.

• The degree of a variable in a term is the exponent on that variable.

• The degree of a polynomial is the highest degree among its terms with non-zero coefficients.