Advertisements
Advertisements
प्रश्न
If a = – 1, b = 2, then find the value of the following:
ab × ba
Advertisements
उत्तर
Given, ab × ba
If a = –1 and b = 2,
Then (–1)2 × (2)–1
= `1 xx 1/2` ...`[∵ a^-m = 1/a^m]`
= `1/2`
APPEARS IN
संबंधित प्रश्न
Cube of `-1/2` is ______.
The expression for 35 with a negative exponent is ______.
The value of [1–2 + 2–2 + 3–2 ] × 62 is ______.
`10^-2 = 1/100`
`x^m/y^m = (y/x)^-m`
If `5^(3x - 1) ÷ 25 = 125`, find the value of x.
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.
Where will the insect be after n hops?
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.
Find x.
2x + 2x + 2x = 192
Simplify:
`(4/13)^4 xx (13/7)^2 xx (7/4)^3`
