Question

19. Which of the following is equal to V-24 ?O-2iV64i 166i-1/2O21 V6

Answer 1

The given value is,

`\sqrt[]{-24}`

We can write this as,

`\sqrt[]{-24}=\sqrt[]{24*-1}`

As we know, 24 = 4 x 6 and,

`\sqrt[]{-1}=i`

the above expression can again be rewritten as,

`\sqrt[]{-24*-1}=\sqrt[]{4*6}* i=2i\sqrt[]{6}`

Thus, the last option is correct.