Advertisements
Advertisements
प्रश्न
The reciprocal of `(2/5)^-1` is ______.
विकल्प
`2/5`
`5/2`
`- 5/2`
` - 2/5`
Advertisements
उत्तर
The reciprocal of `(2/5)^-1` is `underlinebb(5/2)`.
Explanation:
Using law of exponents,
`a^-m = 1/a^m` ...[∵ a is non-zero integer]
∴ `(2/5)^-1 = 1/(2/5)^1 = 5/2`
APPEARS IN
संबंधित प्रश्न
On dividing 85 by ______ we get 8.
The expression for 35 with a negative exponent is ______.
(–6)0 = –1
am × bm = (ab)m
Solve the following:
2–2 × 2–3
Solve the following:
`(1/2)^-2 ÷ (1/2)^-3`
Find the value of x so that (–2)3 × (–2)–6 = (–2)2x – 1
`(125 xx x^-3)/(5^-3 xx 25 xx x^-6)`
A new born bear weighs 4 kg. How many kilograms might a five year old bear weigh if its weight increases by the power of 2 in 5 years?
In a repeater machine with 0 as an exponent, the base machine is applied 0 times. What do these machines do to a piece of chalk?
