simplify the number using the imaginary unit i.

square root of -16

To simplify the number using the imaginary unit i, we need to find the square root of -16.

Step 1: Rewrite -16 as a product of a real number and the imaginary unit i. We know that i^2 = -1, so -16 can be written as -1 * 16.

Step 2: Take the square root of both parts separately. √(-1) = i and √(16) = 4.

Step 3: Combine the real and imaginary parts. The square root of -16 is equal to 4i.

Therefore, the simplified form of the square root of -16 using the imaginary unit i is 4i.

√-16 = √16√-1 = 4i