What is the square root of -19?

Answer 1

No negative number can have a real square root.

In math and engineering, the symbol ' i ' is used to represent

the square root of -1 .

Then the square root of -19 can be written as 4.3589 i (rounded).

Answer 2

± 4.358899
√19 ≈ 4.3589
The square root of 19 is : 4.35889894354067
Approximately 4.36

Answer 3

1.3784