0 reads0 ratings0 helpful
What is the value of (2^1\times2^2)?
Advertisement
Answer and explanation
Correct answer: 8
When powers with the same base are multiplied, their exponents are added: \(2^1\times2^2=2^{1+2}=2^3=8\). Therefore, the correct answer is 8. The value 4 is only \(2^2\), so it is not correct. Exam tip: use \(a^m\times a^n=a^{m+n}\) only when the bases are the same.
Frequently asked questions
What is the correct answer to this question?
8
Why is this the correct answer?
When powers with the same base are multiplied, their exponents are added: \(2^1\times2^2=2^{1+2}=2^3=8\). Therefore, the correct answer is 8. The value 4 is only \(2^2\), so it is not correct. Exam tip: use \(a^m\times a^n=a^{m+n}\) only when the bases are the same.
Which subject and chapter does this question cover?
This is a Class 9 Mathematics question. Chapter: Number Systems. Topic: Exponents.
Student feedback
Was this question useful?
Was this question useful?
👍 0 Helpful 👎 0 Not helpful
Difficulty
Easy0%
Medium0%
Hard0%
Was the explanation clear?
Yes 0% No 0%
0 responsesStudent Reviews
No published reviews yet.
Advertisement