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Quick Revision: Exponents and Powers Video Lecture | Mathematics (Maths) Class 7 (Old NCERT)
FAQs on Quick Revision: Exponents and Powers Video Lecture - Mathematics (Maths) Class 7 (Old NCERT)
| 1. What is an exponent? |  |
Ans. An exponent is a number that represents the power to which another number, called the base, is raised. It indicates how many times the base number is multiplied by itself.
| 2. How do you read an exponent expression? | |
Ans. An exponent expression is read as "base raised to the power of the exponent." For example, 2^3 is read as "2 raised to the power of 3" or "2 cubed."
| 3. What is the difference between a base and an exponent? | |
Ans. The base is the number being raised to a power, while the exponent is the number that represents the power to which the base is raised. For example, in 2^3, 2 is the base and 3 is the exponent.
| 4. How do you calculate the value of an exponent expression? | |
Ans. To calculate the value of an exponent expression, you simply raise the base to the power of the exponent. For example, 2^3 = 2 x 2 x 2 = 8.
| 5. What are some common properties of exponents and powers? | |
Ans. Some common properties of exponents and powers include the product rule (a^m x a^n = a^(m+n)), the quotient rule (a^m / a^n = a^(m-n)), and the power rule ((a^m)^n = a^(m*n)).
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Video Description: Quick Revision: Exponents and Powers for Class 7 2025 is part of Mathematics (Maths) Class 7 (Old NCERT) preparation.
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