Advertisements
Advertisements
प्रश्न
Solve the following:
2–2 × 2–3
Advertisements
उत्तर
2–2 × 2–3
= (2)–2 + (–3) ...[∵ am × an = am + n]
= (2)–2 – 3
= (2)–5
APPEARS IN
संबंधित प्रश्न
The value of `1/4^-2` is ______.
(–9)3 ÷ (–9)8 is equal to ______.
The value of [3–1 × 4–1]2 is ______.
329.25 = 3 × 102 + 2 × 101 + 9 × 100 + 2 × 10–1 + 5 × 10–2
(–2)0 = 2
Planet A is at a distance of 9.35 × 106 km from Earth and planet B is 6.27 × 107 km from Earth. Which planet is nearer to Earth?
Consider a quantity of a radioactive substance. The fraction of this quantity that remains after t half-lives can be found by using the expression 3–t. What fraction of substance remains after 7 half-lives?
Find a single repeater machine that will do the same work as hook-up.

The left column of the chart lists the lengths of input chains of gold. Repeater machines are listed across the top. The other entries are the outputs you get when you send the input chain from that row through the repeater machine from that column. Copy and complete the chart.
| Input Length | Repeater Machine | ||
| × 23 | |||
| 40 | 125 | ||
| 2 | |||
| 162 | |||
Find x.
`(- 1/7)^-5 ÷ (- 1/7)^-7 = (-7)^x`
