Advertisements
Advertisements
प्रश्न
The reciprocal of `(2/5)^-1` is ______.
पर्याय
`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 multiplying ______ by 2–5 we get 25.
am × bm = (ab)m
Find the value of x so that `(5/3)^-2 xx (5/3)^-14 = (5/3)^(8x)`
An insect is on the 0 point of a number line, hopping towards 1. She covers half the distance from her current location to 1 with each hop. So, she will be at `1/2` after one hop, `3/4` after two hops, and so on.
Will the insect ever get to 1? Explain.
For hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it.
Supply the missing information for diagram.
If possible, find a hook-up of prime base number machine that will do the same work as the given stretching machine. Do not use (× 1) machines.
If possible, find a hook-up of prime base number machine that will do the same work as the given stretching machine. Do not use (× 1) machines.
Simplify:
`[(1/2)^2 - (1/4)^3]^-1 xx 2^-3`
Simplify:
`[(4/3)^-2 - (3/4)^2]^((-2))`
