Given
[tex]\sqrt[]{-1.21}[/tex][tex]\text{ Use }i^2=-1\text{ and }1.1^2=1.21.[/tex][tex]\sqrt[]{-1.21}=\sqrt[]{i^2(1.1)^2}=i1.1[/tex]We get the complex number
[tex]i1.1[/tex]This number can be written as follows.
[tex]0+i1.1[/tex]The real part of the complex number is 0 and the imaginary part is 1.1.
There is no real number solution for the given expression.
[tex]\sqrt[]{-1.21}=0+i1.1[/tex]