Advertisements
Advertisements
प्रश्न
Simplify:
`(1/5)^45 xx (1/5)^-60 - (1/5)^(+28) xx (1/5)^-43`
Advertisements
उत्तर
Given, `(1/5)^45 xx (1/5)^-60 - (1/5)^(+28) xx (1/5)^-43`
= `1/(5)^45 xx 1/(5)^-60 - 1/(5)^28 xx 1/(5)^-43` ...[∵ am × an = (a)m + n]
= `1/(5)^(45 - 60) - 1/(5)^(28 - 43)`
= `1/(5)^-15 - 1/(5)^-15` ...`[∵ a^-m = 1/a^m]`
= `(5)^15 - (5)^15`
= 0
APPEARS IN
संबंधित प्रश्न
Simplify :
(– 4)5 × (– 4)-10
The value of (–2)2×3 – 1 is ______.
If x be any non-zero integer, then x–1 is equal to ______.
Cube of `-1/2` is ______.
On multiplying ______ by 2–5 we get 25.
(–5)–2 × (–5)–3 = (–5)–6
For hook-up, determine whether there is a single repeater machine that will do the same work. If so, describe or draw it.
If a = – 1, b = 2, then find the value of the following:
ab ÷ ba
Simplify:
`[(1/2)^2 - (1/4)^3]^-1 xx 2^-3`
Simplify:
`((3^-2)^2 xx (5^2)^-3 xx (t^-3)^2)/((3^-2)^5 xx (5^3)^-2 xx (t^-4)^3`
