Advertisements
Advertisements
Question
Express `16/81` and `(-16)/81` as powers of a rational number.
Sum
Advertisements
Solution
∵ 16 = 4 × 4 = 42
And 81 = 9 × 9 = 92
∴ `16/81 = (4)^2/(9)^2 = (4/9)^2` and `(-16)/(9)^2 = - (4/9)^2`
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Identify the greater number, wherever possible, in the following?
1002 or 2100
Simplify:
3 × 44
Express the following number in index form.
Seventh root of 30
Evaluate:
`{(3/5)^-2}^-2`
Find the value of: 44
Evaluate: `(- 5/6)^5`
Evaluate: `(3/5)^2 xx (- 2/3)^3`
Find the value of 81.
Identify the greater number in the following.
28 or 82
Identify the greater number in the following:
29 or 92
