What is value of (\frac{x^8}{x^5})
Answer and explanation
Correct answer: \(x^3\)
For division of powers with the same non-zero base, subtract the exponents: \(\frac{x^m}{x^n}=x^{m-n}\), where \(x\neq0\). Thus, \(\frac{x^8}{x^5}=x^{8-5}=x^3\). Option B incorrectly adds the exponents, which is the rule for multiplication, not division. Exam tip: add exponents in multiplication and subtract them in division when the bases are the same.
Frequently asked questions
What is the correct answer to this question?
\(x^3\)
Why is this the correct answer?
For division of powers with the same non-zero base, subtract the exponents: \(\frac{x^m}{x^n}=x^{m-n}\), where \(x\neq0\). Thus, \(\frac{x^8}{x^5}=x^{8-5}=x^3\). Option B incorrectly adds the exponents, which is the rule for multiplication, not division. Exam tip: add exponents in multiplication and subtract them in division 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.
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