Advertisements
Advertisements
Question
Evaluate.
`(1/2)^(-5)`
Advertisements
Solution
`(1/2)^(-5) = (2/1)^5` ...`[∵ (1/b)^-m = (b/a)^m]`
= `(2 xx2 xx 2xx2xx 2)/(1 xx 1xx 1xx 1xx1)`
= `32/1`
= 32
APPEARS IN
RELATED QUESTIONS
Evaluate.
3−2
Find the value of the following:
3−1 + 4−1
Find the value of the following:
\[\left\{ \left( \frac{1}{3} \right)^{- 1} - \left( \frac{1}{4} \right)^{- 1} \right\}^{- 1}\]
Express the following rational numbers with a negative exponent:
By what number should 5−1 be multiplied so that the product may be equal to (−7)−1?
By what number should \[\left( \frac{5}{3} \right)^{- 2}\] be multiplied so that the product may be \[\left( \frac{7}{3} \right)^{- 1} ?\]
Find x, if \[\left( \frac{1}{4} \right)^{- 4} \times \left( \frac{1}{4} \right)^{- 8} = \left( \frac{1}{4} \right)^{- 4x}\]
Find the value of x for which 52x ÷ 5−3 = 55.
Find the multiplicative inverse of the following.
The cells of a bacteria double itself every hour. How many cells will there be after 8 hours, if initially we start with 1 cell. Express the answer in powers.
