Question

1.What number raised to the third power will equal 216?

2. /27
3. V-8
4. - 125
5.-V-343
6.
3 27/1000

Answer 1

Let the number be x

#1

`\\ \sf\longmapsto x^3=216`

`\\ \sf\longmapsto x^3=6^3`

`\\ \sf\longmapsto x=6`

#2

`\\ \sf\longmapsto \sqrt[3]{27}=3`

#3

`\\ \sf\longmapsto \sqrt[3]{-8}=2i`

• i=√-1

#4

`\\ \sf\longmapsto -\sqrt[3]{125}=-5`

#5

`\\ \sf\longmapsto -\sqrt[3]{-343}=-7i`

#6

`\\ \sf\longmapsto \sqrt[3]{(27)/(1000)}=(3)/(10)`