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What is the value of \((21)^1\)?
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Answer and explanation
Correct answer: 21
The first power of any non-zero number is the number itself, so \((21)^1=21\). The value 441 is \((21)^2\), not \((21)^1\). Exam tip: when the exponent is 1, the base remains unchanged.
Frequently asked questions
What is the correct answer to this question?
21
Why is this the correct answer?
The first power of any non-zero number is the number itself, so \((21)^1=21\). The value 441 is \((21)^2\), not \((21)^1\). Exam tip: when the exponent is 1, the base remains unchanged.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Polynomials. Topic: Operations on real numbers and the laws of exponents.
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