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प्रश्न
Write the following number using positive indices.
`(2/7)^-2`
योग
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उत्तर
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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क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
संबंधित प्रश्न
Using laws of exponents, simplify and write the answer in exponential form:
(34)3
Say true or false and justify your answer:
23 > 52
Simplify:
`[(15/12)^3]^4`
Simplify:
`[(6/7)^5]^2`
Simplify:
`[(2/3)^-4]^5`
Simplify:
`[(2/5)^-3]^2`
Write the following numbers using positive indices.
(y)−4
Solve: `((2/5)^(-2))^3`.
Which of the following is not equal to 1?
`[((-1)/4)^16]^2 = ((-1)/4)^-`
