Advertisements
Advertisements
प्रश्न
Find the multiplicative inverse of (–7)–2 ÷ (90)–1.
उत्तर
As we know that a is called multiplicative inverse of b, If a × b = 1.
Given:
(–7)–2 ÷ (90)–1
Simplify the above expression as follows:
`(-7)^-2 ÷ (90)^-1 = 1/(7)^2 ÷ 1/(90)^1`
= `1/49 ÷ 1/90`
= `1/49 xx 90/1`
= `90/49`
Let `b = 90/49`
So, `a xx 90/49 = 1`
`a = 49/90`
Hence, the multiplicative inverse is `49/90`.
APPEARS IN
संबंधित प्रश्न
The value of `(1/2^3)^2` is equal to ______.
`10^-2 = 1/100`
Simplify:
`(((-2)/3)^-2)^3 xx (1/3)^-4 xx 3^-1 xx 1/6`
Find the value of x–3 if x = (100)1 – 4 ÷ (100)0.
If `5^(3x - 1) ÷ 25 = 125`, find the value of x.
Find the value of n.
`6^n/6^-2 = 6^3`
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?
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 | |||
Simplify:
`[(4/3)^-2 - (3/4)^2]^((-2))`
