Question

*Which of the following is equal to √-1 ?*

1️⃣ i
2️⃣ - i
3️⃣ -1
4️⃣ 1​

Answer 1

Answer:

i

Step-by-step explanation:

The root of -1 is what we define as i or a unit imaginary number.

Answer 2

Answer:

3)-1

root under -1

$\sqrt{ - 1 \times - 1 } \\ - 1 \\ ok$