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Question
Write the following number using positive indices.
`(2/7)^-2`
Sum
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Solution
It is known that `"a"^-"m" = 1/"a"^"m"` where m is an integer and a is a non-zero rational number.
`(2/7)^-2`
`= 1/(2/7)^2`
`= (7/2)^2`
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Simplify using law of exponents.
(xm)0
Simplify and express the following in exponential form:
45 × 42 × 44
How many zeros are there in 10010?
34 > 43
