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Questions and Answers
What is the definition of a constant in algebraic expressions?
What is the definition of a constant in algebraic expressions?
- A quantity that is unknown
- A quantity that can vary
- A quantity which has a fixed value (correct)
- A quantity with a changing value
Which term in the expression 10xy+4y has the coefficient of 10?
Which term in the expression 10xy+4y has the coefficient of 10?
- xy (correct)
- y
- 10
- 4y
What are parts of an expression formed separately first and then added known as?
What are parts of an expression formed separately first and then added known as?
- Coefficients
- Constants
- Variables
- Terms (correct)
Which mathematical concept relates to the successor of a natural number?
Which mathematical concept relates to the successor of a natural number?
In algebraic expressions, what is the coefficient of '2n' if n represents a natural number?
In algebraic expressions, what is the coefficient of '2n' if n represents a natural number?
In the expression 4xy - 2x + 7, what is the coefficient of the second term, -2x?
In the expression 4xy - 2x + 7, what is the coefficient of the second term, -2x?
Which of the following terms is a binomial?
Which of the following terms is a binomial?
What is the number of terms in the expression 5p^2 + 3pq - 2r + 7?
What is the number of terms in the expression 5p^2 + 3pq - 2r + 7?
If n denotes the number of sides of a polygon, what is the number of diagonals that can be drawn from one vertex?
If n denotes the number of sides of a polygon, what is the number of diagonals that can be drawn from one vertex?
Which of the following expressions is a monomial?
Which of the following expressions is a monomial?
Study Notes
Algebraic Expressions
- A constant in algebraic expressions is a term with no variable.
Terms and Coefficients
- In the expression 10xy + 4y, the term with the coefficient of 10 is 10xy.
- The coefficient of '2n' is 2, where n represents a natural number.
- In the expression 4xy - 2x + 7, the coefficient of the second term, -2x, is -2.
Expressions and Terms
- Parts of an expression formed separately first and then added are known as terms.
- The expression 5p^2 + 3pq - 2r + 7 has 4 terms.
Mathematical Concepts
- The concept of successor relates to natural numbers.
Polynomials and Binomials
- A binomial is an expression with two terms.
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Description
Get detailed notes for Class 7 Maths Chapter 12: Algebraic Expressions covering topics like introduction to algebraic expressions, formation of algebraic expressions, addition and subtraction of algebraic equations, and more. Also includes frequently asked questions for better understanding.
