Simplify: a^m divided by a^n equals:
Aa^(m-n)
Ba^(m+n)
Ca^(mn)
Da^(n-m)
Answer & Solution
Correct answer: A. a^(m-n)
1. Dividing powers of the same base keeps the base.
2. The exponents are combined by subtraction.
3. So a^m divided by a^n is a^(m-n).
4. So the answer is a^(m-n).
_Source: NCERT Class 8 Mathematics, Ch 10 'Exponents and Powers'_
Related questions
Which is the smallest of these lengths?The thickness of a paper, 0.0016 cm, in standard form is:Simplify: 2^-3 multiplied by 2^-4 equals:The mass of the earth, 5,970,000,000,000,000,000,000,000 kg, is:To add numbers in standard form, first make them have:The diameter of the Sun is about how many times the Earth's?Written in usual form, 3 x 10^-5 is:The number 4,050,000 in standard form is: