Advertisements
Advertisements
प्रश्न
Solve the following:
`(1/2)^-2 ÷ (1/2)^-3`
Advertisements
उत्तर
`(1/2)^-2 ÷ (1/2)^-3`
Using am ÷ an = am – n
`\implies (1/2)^(-2 - (-3))`
= `(1/2)^(-2 + 3)`
= `1/2`
= 2–1
APPEARS IN
संबंधित प्रश्न
The value of (–2)2×3 – 1 is ______.
`[(2/13)^-6 ÷ (2/13)^3]^3 xx (2/13)^-9` = ______.
The value of [2–1 × 3–1]–1 is ______.
By what number should we multiply (–29)0 so that the product becomes (+29)0.
Find the multiplicative inverse of (–7)–2 ÷ (90)–1.
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.
Use the properties of exponents to verify that statement is true.
`4^(n - 1) = 1/4(4)^n`
Find x.
`(- 1/7)^-5 ÷ (- 1/7)^-7 = (-7)^x`
If a = – 1, b = 2, then find the value of the following:
ab + ba
