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प्रश्न
Evaluate.
(−4)−2
मूल्यांकन
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उत्तर
`(-4)^(-2) = 1/(-4)^2`
= `1/ ((-4) xx (-4))` ...`(a^(-m) = 1/a^m)`
= `1/16`
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पाठ 10: Exponents and Powers - EXERCISE 10.1 [पृष्ठ १२५]
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संबंधित प्रश्न
Evaluate.
`(1/2)^(-5)`
Find the value of the following:
(3−1 + 4−1 + 5−1)0
Simplify:
\[\left( 3^{- 1} \times 4^{- 1} \right)^{- 1} \times 5^{- 1}\]
Express the following rational numbers with a positive exponent:
\[4^3 \times 4^{- 9}\]
Simplify:
\[\left( 3^2 - 2^2 \right) \times \left( \frac{2}{3} \right)^{- 3}\]
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
Find x, if
\[\left( \frac{2}{5} \right)^{- 3} \times \left( \frac{2}{5} \right)^{15} = \left( \frac{2}{5} \right)^{2 + 3x}\]
Find x, if
\[\left( \frac{5}{4} \right)^{- x} \div \left( \frac{5}{4} \right)^{- 4} = \left( \frac{5}{4} \right)^5\]
Find the value of `(1/2)^(-2)+(1/3)^(-2)+(1/4)^(-2)`
The expression for 4–3 as a power with the base 2 is 26.
